Tech cheat sheets
Just wanted to move these links from my bookmarks 
Agile
.Net
.NET Cheat Sheet The skinny on 1.1, 2.0, 3.0 and 3.5.
C# and VB.NET Comparison Cheat Sheet
Microsoft® Visual C#® Default Keybindings
ASP.Net
Microsoft AJAX Library Cheat Sheets Adjusted for RTM, DomEvent and DomElement
.NET Cheat Sheet ASP.NET 2.0 Page Life Cycle & Common Events
WPF
XAML Cheat Sheet - The most common and useful XAML snippets you'll need when doing WPF or Silverlight.
WPF XAML Data Binding Cheat Sheet
LINQ
Regular Expressions
Regular Expression Cheat Sheet (.NET Framework)
Regular Expressions Cheat Sheet
SVN
Subversion Cheat Sheet, a.k.a. the “SVN Sheet”.
JavaScript
Google Docs - JQuery Cheat Sheet
SQL Server
Cheat Sheet Lists -
TechCheatSheets.com – Tech and programming Cheat Sheets and Quick Reference Guides
Cheat Sheets – List of cheat sheets from AddedBytes.com
.Net Cheat Sheets – List of .net and other cheat sheets