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
Build Intelligent Apps Faster with Visual Studio and the Data Science Workload (2017-05-10) blogs.msdn.microsoft.com
A Real Hackers IDE (2017-04-17) hackaday.com
Programming in AWS Using Visual Studio 2017 (2017-04-10) dzone.com
Visual Studio 2017 Performance Improvements (2017-04-05) blogs.msdn.microsoft.com
Visual Studio 2017 Update (2017-04-05) blogs.msdn.microsoft.com
Choosing Among Text Editors and IDEs (2017-03-21) www.monitis.com
Eclipse Plugins via HTTPS and Lets Encrypt (2017-03-13) dzone.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
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
Xamarin University Presents Getting Started with Xamarin for Visual Studio (2017-03-02) blogs.msdn.microsoft.com
Release Notes Codenvy 53 (2017-02-22) medium.com
Visual Studio Extensibility Day 2 Deploying Visual Studio Extension on staging server and GIT via Continuous Integration (2017-02-14) www.codeproject.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
Run Codenvy Anywhere (2017-01-30) medium.com
3 IDEs That Will Set the Standard for Cloud Coding Environments (2017-01-31) dzone.com
Release Notes Codenvy 5 (2017-01-20) medium.com
Tweet Now RepreZenAPI Studio is available on Eclipse Marketplace Drop into your Eclipse IDE design ampamp build APIs wihellip httpstcozcir8tkwqn (2017-01-09) twitter.com
IDE Features Trainer A New Way to Learn Your IDE (2016-12-15) dzone.com
Extensibility in Visual Studio 15 Increasing Reliability and Performance (2016-11-10) blogs.msdn.microsoft.com
Using Docker to Build a CrossPlatform CLI (2016-10-10) medium.com
Releasing a Visual Studio Extension (2016-10-04) www.codeproject.com
New Lightning Support in the Forcecom IDE and Everywhere (2016-09-28) developer.salesforce.com
Visual Studio Bitbucket Extension (2016-09-28) devpost.com
(2016-09-12) developers.google.com
Getting started with Cloud Tools for Visual Studio (2016-09-07) cloudplatform.googleblog.com
OpenShift Ecosystem Microsoft Visual Studio OpenShift and NET with Click2Cloud (2016-08-30) blog.openshift.com
XPath for Selenium IDE (2016-09-02) dzone.com
Atom 110 and 111 beta (2016-08-31) blog.atom.io
The Evolution and Future of IDEs (2016-08-25) dzone.com
Never leave your Java IDE with Google Cloud Tools for IntelliJ plugin (2016-08-22) cloudplatform.googleblog.com
How to Use React with Visual Studio and ASPNET Web API (2016-08-08) blog.pusher.com
How to update REST API Client from a Swagger file in Visual Studio (2016-08-03) stackoverflow.com
Amazons AWS buys Cloud9 to add more development tools to its web services stack (2016-07-16) techcrunch.com
Amazon buys popular cloudbased IDE Cloud9 for use with AWS (2016-07-14) thenextweb.com
Amazons AWS acquires cloudbased IDE startup Cloud9 (2016-07-14) www.zdnet.com
Create a Desktop App With Angular 2 and Electron (2016-05-13) dzone.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
Handson 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
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
Handson with Codenvy Painless Contribution with Pull Request Plugin (2016-06-22) blog.codenvy.com
How to test API endpoint using Atom and RAML (2016-07-04) stackoverflow.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
Sourcegraph for GitHub Browse and search GitHub like an IDE (2016-06-03) chrome.google.com
Building Rest Service Made Easy Using Eclipse Plugin (2016-05-12) dzone.com
Macros extension VS 2015 support and opensourced (2016-05-11) blogs.msdn.microsoft.com
Codenvy builds Samsung an IDE in the box experience with Eclipse Che (2016-05-11) blog.codenvy.com
Release Notes Codenvy and Eclipse Che 410 (2016-04-23) blog.codenvy.com
Presentation Rapid Integration of Scientific Software with Eclipse ICE (2016-04-13) www.infoq.com
Introducing TestLeft Giving Developers the Power to Test Within Standard IDEs (2016-04-08) blog.smartbear.com
Codenvy Release Enterprise and Team workspaces now available (2016-03-31) blog.codenvy.com
API Changes Coming in Electron 10 (2016-03-30) blog.atom.io
Easily Extend Your IDE With Extensibility Feature for Visual Studio 2015 (2016-03-20) dzone.com
Getting Started With WordPress and Che (2016-03-22) dzone.com
Introducing R Tools for Visual Studio (2016-03-22) blogs.msdn.microsoft.com
Open Sourcing the Visual Studio Productivity Power Tools (2016-03-17) blogs.msdn.microsoft.com
Support Ending for Visual Studio 2005 (2016-03-11) blogs.msdn.microsoft.com
Eclipse Che Release New IDE Platform Reimagines the Developer Workspace (2016-03-07) blog.codenvy.com
Eclipse Foundation Releases NextGeneration IDE Eclipse Che 40 (2016-03-08) www.infoq.com
Cloud9 IDE now supports Google Cloud Platform (2016-03-09) cloudplatform.googleblog.com
Announcing Tools for Apache Cordova Update 7 (2016-03-09) blogs.msdn.microsoft.com
The Probably Simplest Intro to Visual Studio Unit Testing Ever Written (2016-02-25) www.codeproject.com
The Magic that is Codenvy (2016-02-25) blog.codenvy.com
Introducing IBM Nodejs Tools for Eclipse Beta (2016-02-23) strongloop.com
Develop ReactNative apps in Visual Studio Code (2016-02-22) 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
Protected The nextgeneration of Codenvy is now beta (2016-02-17) blog.codenvy.com
The Buzz Around Eclipse Che (2016-02-11) 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
Unit Testing Apache Cordova Apps with Visual Studio Part 1 (2016-01-11) blogs.msdn.microsoft.com
Future trends for IoT Open Source and Eclipse IoT (2016-02-02) dzone.com
Automated Testing with Visual Studio (2016-02-01) channel9.msdn.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
Cloud9 IDE now supports Google Cloud Platform (2016-01-27) googlecloudplatform.blogspot.com
Announcing Eclipse Che Beta (2016-01-26) blog.codenvy.com
Visual Studio Tools for Apache Cordova Update 5 (2016-01-21) blogs.msdn.com
Unit Testing Apache Cordova Apps with Visual Studio Part 2 (2016-01-13) blogs.msdn.com
Snippets for Visual Studio (2016-01-08) www.codeproject.com
Thoughts on Yesterdays Issue Surrounding the GitHub for Visual Studio Extension (2015-12-16) www.codeproject.com
The API web needs a GUI (2015-12-15) pronovix.com
Reconciling My API Orchestration Research With the Evolution of IDE SDK and HTTP Clients (2015-10-23) apievangelist.com
Visual Studio Design Patterns addinextension (2015-09-11) www.codeproject.com
pahodev TLSMQTTsecure is now enabled on Eclipse IoT sandbox (2015-08-31) dev.eclipse.org
Visual Studio Online Extensibility and Marketplace (2015-08-26) blogs.msdn.microsoft.com
Eclipse Che and Codenvy on Docker (2015-08-13) blog.codenvy.com
Seconds to Bliss Announcing a new Dashboard Beta (2015-07-10) blog.codenvy.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
(2015-06-27) apievangelist.com
autocompleteatomapicompletionsjson at master (2015-06-26) github.com
Google Ends Support for Android Eclipse Tools (2015-06-27) www.infoq.com
Google plans to support its Android Studio IDE instead of Eclipse (2015-06-26) thenextweb.com
An Introduction to Eclipse Che YouTube (2015-06-25) www.youtube.com
Localhost is Killing Software Delivery (2015-06-18) blog.codenvy.com
GitHub Releases Atom 10 Source Code Editor After Yearlong Beta (2015-06-25) www.programmableweb.com
Facebook opensources its Nuclide IDE based on GitHubs Atom text editor (2015-06-23) venturebeat.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
Making JavaScript Editing Easier in Visual Studio 2015 (2015-06-11) www.infoq.com
Are cloud vendors and ISVs adopting cloud IDEs (2015-06-01) blog.codenvy.com
Customizing Codenvy OnPrem with Eclipse Che Extensions (2015-06-04) blog.codenvy.com
Getting Started with Docker Tools in Eclipse (2015-06-05) www.voxxed.com
Introducing the Project System Extensibility SDK Preview (2015-06-02) blogs.msdn.com
Extending Visual Studio 2015 (2015-05-29) blogs.msdn.com
The Che Approach Automating Developer Workflow (2015-05-27) blog.codenvy.com
Deploy to Cloud Foundry with Codenvy (2015-05-21) blog.codenvy.com
Salesforce Connected Services in Visual Studio (2015-05-12) developer.salesforce.com
Visual Studio Code and Azure App Service a perfect fit (2015-05-11) azure.microsoft.com
The Future of Cloud IDEs (2015-05-05) blog.codenvy.com
Introducing Visual Studios Network tool (2015-05-04) blogs.msdn.com
GitHubs 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
Microsofts crossplatform Visual Studio Code app is based on technology from Githubs Atom editor (2015-04-30) thenextweb.com
Hello Minecraft modders Visual Studio 3s Minecraft (2015-04-30) blogs.msdn.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
39 Release Notes PayasyouGo IDE (2015-04-27) blog.codenvy.com
Nodejs Tools 10 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
Limitless Customization with Che (2015-04-13) blog.codenvy.com
How to Create Your Own Eclipse IDE Plugin (2015-04-04) www.codeproject.com
ConnectLive 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 22 Beta Released (2015-03-16) blogs.msdn.microsoft.com
Facebook announces Nuclide an opensource IDE based on GitHubs Atom text editor (2015-03-26) venturebeat.com
Introducing the Azure API Apps Tools for Visual Studio 2013 (2015-03-24) blogs.msdn.com
How API Description Languages Enable API IDEs (2015-02-18) www.programmableweb.com
Aspose Maven Dependencies Integrates with Eclipse IDE (2015-01-07) www.aspose.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.