.Net library

1.Intelligencia.UrlRewriter

https://github.com/sethyates/urlrewriter

2.iTextSharp library
http://blog.csdn.net/plean/article/details/8058831

http://blog.csdn.net/plean/article/details/8058838

HTML转PDF（C#---itextsharp）
http://blog.csdn.net/plean/article/details/8052239

VS2010下asp.net 对现有的PDF文档进行加密(利用iTextSharp)
http://blog.csdn.net/xjzdr/article/details/6686327

iTextSharp
http://www.cnblogs.com/haogj/archive/2011/09/05/2167659.html

3 .Ajax Control Toolkit
https://ajaxcontroltoolkit.codeplex.com/

4.直接拿来用,最火的.NET开源项目(beta)
http://www.cnblogs.com/Mercurius/p/the_most_popular_Csharp_opensource_project.html

5.xunit.net
http://xunit.codeplex.com/wikipage?title=HowToUse

在.NET开发中的单元测试工具之(2)——xUnit.Net
http://blog.csdn.net/zhoufoxcn/article/details/8765382