Dot Net

Captchas

• http://haacked.com/archive/2006/09/26/Lightweight_Invisible_CAPTCHA_Validator_Control.aspx
• http://www.codeproject.com/KB/aspnet/CaptchaImage.aspx
• http://www.codeproject.com/KB/custom-controls/CaptchaControl.aspx
• reCaptcha.net
• Captcha.net
• An ASP.NET Framework for Human Interactive Proofs
• ASP .NET 2.0 Captcha Control - AJAX friendly

Web Services

• Consuming ASP.net WebServices, WCF Services and static Page methods from JavaScript (sans MS AJAX)

Database Access

• Smart Device Login Application using SQL Server CE Database
• Subsonic : A Super High-fidelity Batman Utility Belt that works up your Data Access (using Linq in 3.0), throws in some much-needed utility functions, and generally speeds along your dev cycle.

Sérialization

• http://www.codeproject.com/csharp/XmlSerializerForUnknown.asp
• http://www.codeproject.com/useritems/GenericXmlSerializition.asp

Utilitaires

• Reflector for .NET - Decompiler
• Reflector add-ins