These are the news items I've curated in my monitoring of the API space that have some relevance to the API definition conversation and I wanted to include in my research. I'm using all of these links to better understand how the space is testing their APIs, going beyond just monitoring and understand the details of each request and response.

Title Source Visit
Why Startups Need an API (2012-04-21) tune.com
Aspose Maven Dependencies Integrates with Eclipse IDE (2015-01-07) www.aspose.com
How API Description Languages Enable API IDEs (2015-02-18) www.programmableweb.com
Connect(?Live?); ? Debugging and Cloud Diagnostics Visual Studio Team QA (2015-02-25) blogs.msdn.microsoft.com
A Preview of Angular 2 and TypeScript in Visual Studio (2015-03-12) blogs.msdn.microsoft.com
Python Tools for Visual Studio 2.2 Beta Released (2015-03-16) blogs.msdn.microsoft.com
Introducing the Azure API Apps Tools for Visual Studio 2013 (2015-03-24) blogs.msdn.com
Facebook announces Nuclide, an open-source IDE based on GitHub?s Atom text editor (2015-03-26) venturebeat.com
How to Create Your Own Eclipse IDE Plug-in (2015-04-04) www.codeproject.com
Limitless Customization with ?Che? (2015-04-13) blog.codenvy.com
Node.js Tools 1.0 on GitHub and VMs Available (2015-04-24) blogs.msdn.com
Getting started with GIT, Visual Studio, and BitBucket (2015-04-25) www.codeproject.com
3.9 Release Notes: Pay-as-you-Go IDE (2015-04-27) blog.codenvy.com
Hello Minecraft modders! Visual Studio <3s Minecraft (2015-04-30) blogs.msdn.com
Microsoft?s cross-platform Visual Studio Code app is based on technology from Github?s Atom editor (2015-04-30) thenextweb.com
Announcing the GitHub Extension for Visual Studio (2015-04-30) blogs.msdn.com
GitHub Enterprise comes to Microsoft Azure, GitHub launches Visual Studio 2015 integrations (2015-04-30) venturebeat.com
Introducing Visual Studio?s Network tool (2015-05-04) blogs.msdn.com
The Future of Cloud IDEs (2015-05-05) blog.codenvy.com
GitHub?s Atom text editor picks up 750K downloads in its first year, with 300K monthly users (2015-05-06) venturebeat.com
GitHub Integration in Developer Assistant (2015-05-08) blogs.msdn.com
Visual Studio Code and Azure App Service ? a perfect fit (2015-05-11) azure.microsoft.com
Salesforce Connected Services in Visual Studio (2015-05-12) developer.salesforce.com
Deploy to Cloud Foundry with Codenvy (2015-05-21) blog.codenvy.com
The Che Approach: Automating Developer Workflow (2015-05-27) blog.codenvy.com
Extending Visual Studio 2015 (2015-05-29) blogs.msdn.com
Are cloud vendors and ISVs adopting cloud IDEs? (2015-06-01) blog.codenvy.com
Introducing the Project System Extensibility SDK Preview (2015-06-02) blogs.msdn.com
Customizing Codenvy On-Prem with Eclipse Che Extensions (2015-06-04) blog.codenvy.com
Getting Started with Docker Tools in Eclipse (2015-06-05) www.voxxed.com
Making JavaScript Editing Easier in Visual Studio 2015 (2015-06-11) www.infoq.com
Presentation: An Introduction to Eclipse Che (2015-06-12) www.infoq.com
The Containerization of the Developer Workspace (2015-06-12) blog.codenvy.com
Localhost is Killing Software Delivery (2015-06-18) blog.codenvy.com
Facebook open-sources its Nuclide IDE based on GitHub?s Atom text editor (2015-06-23) venturebeat.com
GitHub Releases Atom 1.0 Source Code Editor After Yearlong Beta (2015-06-25) www.programmableweb.com
An Introduction to Eclipse Che - YouTube (2015-06-25) www.youtube.com
Google plans to support its Android Studio IDE instead of Eclipse (2015-06-26) thenextweb.com
autocomplete-atom-api/completions.json at master (2015-06-26) github.com
Google Ends Support for Android Eclipse Tools (2015-06-27) www.infoq.com
Start Automation Runbooks in Response to Events in Visual Studio Online (2015-07-06) azure.microsoft.com
Share Your Open Source Extension on the Visual Studio Gallery! (2015-07-06) blogs.msdn.com
Seconds to Bliss: Announcing a new Dashboard Beta (2015-07-10) blog.codenvy.com
Eclipse Che and Codenvy on Docker (2015-08-13) blog.codenvy.com
Visual Studio Online Extensibility and Marketplace (2015-08-26) blogs.msdn.microsoft.com
[paho-dev] TLS/MQTT-secure is now enabled on Eclipse IoT sandbox (2015-08-31) dev.eclipse.org
Visual Studio Design Patterns add-in/extension (2015-09-11) www.codeproject.com
The API web needs a GUI (2015-12-15) pronovix.com
Thoughts on Yesterdays Issue Surrounding the GitHub for Visual Studio Extension (2015-12-16) www.codeproject.com
Snippets for Visual Studio (2016-01-08) www.codeproject.com
Unit Testing Apache Cordova Apps with Visual Studio, Part 1 (2016-01-11) blogs.msdn.microsoft.com
Unit Testing Apache Cordova Apps with Visual Studio, Part 2 (2016-01-13) blogs.msdn.com
Visual Studio Tools for Apache Cordova Update 5 (2016-01-21) blogs.msdn.com
Announcing Eclipse Che Beta (2016-01-26) blog.codenvy.com
Cloud9 IDE now supports Google Cloud Platform (2016-01-27) googlecloudplatform.blogspot.com
Apache Cordova development lands on Visual Studio Code (2016-01-28) blogs.msdn.microsoft.com
Codenvy Announces the Beta Milestone of Eclipse Che (2016-01-31) dzone.com
Automated Testing with Visual Studio (2016-02-01) channel9.msdn.com
Future trends for IoT, Open Source, and Eclipse IoT (2016-02-02) dzone.com
Free Visual Studio Dev Essentials Program now includes $300 in Azure credits and Exclusive Xamarin University access (2016-02-03) blogs.msdn.microsoft.com
Write once and deploy to Microsoft Azure or Microsoft Azure Stack from Visual Studio (2016-02-08) blogs.msdn.microsoft.com
Find Your Favorite Visual Studio Extension (2016-02-11) blogs.msdn.microsoft.com
The Buzz Around Eclipse Che (2016-02-11) dzone.com
Protected: The next-generation of Codenvy is now beta. (2016-02-17) blog.codenvy.com
Develop ReactNative apps in Visual Studio Code (2016-02-22) blogs.msdn.microsoft.com
Introducing IBM Node.js Tools for Eclipse Beta (2016-02-23) strongloop.com
The Magic that is Codenvy (2016-02-25) blog.codenvy.com
The (Probably) Simplest Intro to Visual Studio Unit Testing Ever Written (2016-02-25) www.codeproject.com
Eclipse Che Release: New IDE Platform Reimagines the Developer Workspace (2016-03-07) blog.codenvy.com
Eclipse Foundation Releases Next-Generation IDE, Eclipse Che 4.0 (2016-03-08) www.infoq.com
Announcing Tools for Apache Cordova Update 7 (2016-03-09) blogs.msdn.microsoft.com
Cloud9 IDE now supports Google Cloud Platform (2016-03-09) cloudplatform.googleblog.com
Support Ending for Visual Studio 2005 (2016-03-11) blogs.msdn.microsoft.com
Open Sourcing the Visual Studio Productivity Power Tools (2016-03-17) blogs.msdn.microsoft.com
Easily Extend Your IDE With Extensibility Feature for Visual Studio 2015 (2016-03-20) dzone.com
Introducing R Tools for Visual Studio (2016-03-22) blogs.msdn.microsoft.com
Getting Started With WordPress and Che (2016-03-22) dzone.com
API Changes Coming in Electron 1.0 (2016-03-30) blog.atom.io
Codenvy Release: Enterprise and Team workspaces now available. (2016-03-31) blog.codenvy.com
Introducing TestLeft: Giving Developers the Power to Test Within Standard IDEs (2016-04-08) blog.smartbear.com
Presentation: Rapid Integration of Scientific Software with Eclipse ICE (2016-04-13) www.infoq.com
Release Notes: Codenvy and Eclipse Che 4.1.0 (2016-04-23) blog.codenvy.com
Codenvy builds Samsung an ?IDE in the box? experience with Eclipse Che (2016-05-11) blog.codenvy.com
Macros extension: VS 2015 support and open-sourced (2016-05-11) blogs.msdn.microsoft.com
Building Rest Service Made Easy Using Eclipse Plugin (2016-05-12) dzone.com
Create a Desktop App With Angular 2 and Electron (2016-05-13) dzone.com
Hands-on with Eclipse Che: Simplifying of Configuring Commands (2016-05-18) blog.codenvy.com
New Eclipse Download Page (2016-05-19) dzone.com
Pinegrow + Atom ? The perfect IDE for the web (2016-05-27) pinegrow.com
Sourcegraph for GitHub ? Browse and search GitHub like an IDE (2016-06-03) chrome.google.com
Macros Return to Visual Studio (2016-06-06) www.infoq.com
Push Your Webpage to GitHub Repository through Visual Studio (2016-06-14) www.codeproject.com
Hands-on with Codenvy: Painless Contribution with Pull Request Plugin (2016-06-22) blog.codenvy.com
Announcement: Eclipse Che Now a Strategic Platform for Red Hat (2016-06-27) blog.codenvy.com
Press Release: Red Hat, Codenvy and Microsoft Collaborate on Language Server Protocol (2016-06-27) blog.codenvy.com
How to test API endpoint using Atom and RAML? (2016-07-04) stackoverflow.com
Presentation: Improvements for Eclipse JavaScript Tooling (2016-07-10) www.infoq.com
Presentation: Eclipse, the IDE for IoT (2016-07-10) www.infoq.com
Amazons AWS acquires cloud-based IDE startup Cloud9 (2016-07-14) www.zdnet.com
Amazon buys popular cloud-based IDE Cloud9 for use with AWS (2016-07-14) thenextweb.com
Amazon?s AWS buys Cloud9 to add more development tools to its web services stack (2016-07-16) techcrunch.com
How to update REST API Client from a Swagger file in Visual Studio (2016-08-03) stackoverflow.com
How to Use React with Visual Studio and ASP.NET Web API (2016-08-08) blog.pusher.com
Never leave your Java IDE with Google Cloud Tools for IntelliJ plugin (2016-08-22) cloudplatform.googleblog.com
The Evolution and Future of IDEs (2016-08-25) dzone.com
OpenShift Ecosystem: Microsoft Visual Studio , OpenShift and .NET with Click2Cloud (2016-08-30) blog.openshift.com
Atom 1.10 and 1.11 beta (2016-08-31) blog.atom.io
XPath for Selenium IDE (2016-09-02) dzone.com
Getting started with Cloud Tools for Visual Studio (2016-09-07) cloudplatform.googleblog.com
(2016-09-12) developers.google.com
Visual Studio Bitbucket Extension (2016-09-28) devpost.com
New Lightning Support in the Force.com IDE ? and Everywhere! (2016-09-28) developer.salesforce.com
Releasing a Visual Studio Extension (2016-10-04) www.codeproject.com
Using Docker to Build a Cross-Platform CLI (2016-10-10) medium.com
Extensibility in Visual Studio ?15?: Increasing Reliability and Performance (2016-11-10) blogs.msdn.microsoft.com
IDE Features Trainer: A New Way to Learn Your IDE (2016-12-15) dzone.com
Tweet: Now @RepreZen_API Studio is available on Eclipse Marketplace! Drop into your #Eclipse IDE, #design amp;amp; build #APIs wihellip; https://t.co/zcir8tkwqn (2017-01-09) twitter.com
3 IDEs That Will Set the Standard for Cloud Coding Environments (2017-01-31) dzone.com
Another Update to Visual Studio 2017 Release Candidate (2017-02-07) blogs.msdn.microsoft.com
Codenvy for Secure Environments (2017-02-10) blog.codenvy.com
Visual Studio Extensibility (Day 2): Deploying Visual Studio Extension on staging server and GIT via Continuous Integration (2017-02-14) www.codeproject.com
Release Notes: Codenvy 5.3 (2017-02-22) medium.com
Xamarin University Presents: Getting Started with Xamarin for Visual Studio (2017-03-02) blogs.msdn.microsoft.com
Top Integrated Developer Environments (IDEs): 50 Powerful Dev Environments for Streamlined Development, from the Simple and Lightweight to the Robust and Sophisticated (2017-03-02) stackify.com
Visual Studio 2017: Productivity, Performance, and Partners (2017-03-07) blogs.msdn.microsoft.com
A Look at the Percepio FreeRTOS Tracealyzer Plugin for Eclipse (2017-03-10) dzone.com
Eclipse Plugins via HTTPS and Lets Encrypt (2017-03-13) dzone.com
Choosing Among Text Editors and IDEs (2017-03-21) www.monitis.com
Visual Studio 2017 Update (2017-04-05) blogs.msdn.microsoft.com
Visual Studio 2017 Performance Improvements (2017-04-05) blogs.msdn.microsoft.com
Programming in AWS Using Visual Studio 2017 (2017-04-10) dzone.com
A Real Hacker’s IDE (2017-04-17) hackaday.com
Build Intelligent Apps Faster with Visual Studio and the Data Science Workload (2017-05-10) blogs.msdn.microsoft.com
Red Hat to acquire Codenvy as part of its growing container strategy (2017-05-25) techcrunch.com
Red Hat to Acquire Codenvy, Integrate Its IDE into OpenShift.io (2017-05-25) thenewstack.io
Put Your IDE in a Container with Guacamole (2017-06-30) blog.openshift.com
Visual studio team service: Trigger a build using any HTTP client (2017-07-24) medium.com
Open sourcing a backend for auto (2017-08-07) medium.com
Introducing Atom (2017-09-11) blog.atom.io
Atom 1.20 (2017-09-11) blog.atom.io
Sublime Text 3.0 is released (2017-09-13) laravel-news.com
GitHub’s Atom Text Editor Gets a Full IDE (2017-09-13) thenewstack.io
Twilio Studio lets you build communication services without having to code (2017-09-19) techcrunch.com
The 3 Best Cloud IDEs for Backend Developers (2017-09-21) zapier.com
Atom 1.21 (2017-10-02) blog.atom.io
Atom’s new concurrency (2017-10-11) blog.atom.io
Code together in real time with Teletype for Atom (2017-11-14) blog.atom.io
GitHub’s Atom text editor now lets you collaborate on code in real (2017-11-15) thenextweb.com
This Week in Programming: Real (2017-11-18) thenewstack.io
Amazon’s AWS Cloud9 IDE lets you write, test, and debug code in your browser (2017-11-30) thenextweb.com
Amazon's new cloud (2017-12-08) mashable.com
5 Code Editors for Web Application and API Development (2017-12-27) blog.codeship.com
Cloud IDE Market as platform as a service (PaaS) (2017-12-27) www.editiontruth.com
Eclipse: Still the Best IDE! (2018-02-07) dzone.com
Atom 1.24 (2018-02-12) blog.atom.io
Visual Studio Code will now ship with Anaconda (2018-02-15) sdtimes.com
Screenster vs classic Record/Playback IDEs (2018-05-18) medium.com
Online IDE Repl.it (2018-07-11) medium.com
GitLab 11.2 released with insight into real (2018-08-23) sdtimes.com
Top 5 New IDE Features in API Studio (2018-09-07) www.reprezen.com

If you think there is a link I should have listed here feel free to tweet it at me, or submit as a Github issue. Even though I do this full time, I'm still a one person show, and I miss quite a bit, and depend on my network to help me know what is going on.