qxdotnet is a server side ASP.NET wrapper for qooxdoo library
A free IDE for C#, VB.NET, & Boo projects on Microsoft's .NET platform
Uniform Database Abstraction for PHP Development
Rapidly create HTML5 mobile web enterprise applications in .NET
Enterprise- level HTML5 application development platform
New architectural pattern for building highly dynamic Web 2.0 apps.
A modular ASP.NET/db4o based application framework
Validation of IBANs, bank accounts, credit cards, identity cards