The Cortana Skills Kit provides all the tools and docs for developers to promote services and engage users through the Cortana experience.
Latest Design/Techniques Articles
Building a Dynamic Navigation Bar for iOS Apps Using Xamarin
Build a Dynamic Navigation Bar in Xamarin forms with some elements at the platform level as examples.
Functional Programming in C#: Purity and Concurrency
Learn about pure functions and why they should be your weapon of choice when writing code for parallel and, more generally, concurrent execution.
Understanding C# Tuples
With the arrival of C# 7, tuples have changed quite a bit. If you haven't been using them, read this article; you might reconsider their use.
Using C# 7 Local Functions
C# 7 will bring to us the use of local functions, helping developers alleviate the problem of keeping track of a large number of methods.
C# Back to Basics: Static Constructors
Static constructors are a very basic, yet highly useful, feature of C#. Get the hang of using them here.
Latest CodeGuru Developer Columns
C++ Exception Handling: How to Handle Exceptions in C++
Learn to implement exception handling mechanism in C++.

Migrating to ASP.NET Core 2.0
Here's a checklist to prepare for upgrading from ASP.NET Core 1.1 to 2.0.

Creating .NET Framework 4.7 Apps with Visual Studio 2017
Microsoft released .NET Framework 4.7 earlier this year. Let's find out what you can do with it!
Programming Devices and Activities from the Microsoft Graph APIs
With Microsoft's new Project Rome, the user experience across all platforms (Windows, iOS, or Android) will be seamless among different hardware.