LINQPad - A scratchpad for C#, F# and VB code including Linq queries.
Lepton - Lepton image compression: saving 22% losslessly from images at 15MB/s
Linqer - Linqer is a SQL to LINQ converter tool.
GitHub Gist - Gist is a simple way to share snippets and pastes with others.
Dot Net Editor - An VB/C# text editor with the ability to run code and code snippets.
Skippy - YouTube videos turned into books. Watch faster, even deeper.