http://signalr.net/
https://github.com/SignalR/SignalR
http://www.asp.net/signalr
http://www.cnblogs.com/shanyou/archive/2012/07/28/2613693.html
http://www.codeproject.com/Articles/524066/SignalR-Simple-Chat-Application-in-Csharp
http://blog.csdn.net/kesalin/article/details/8166925
https://github.com/fanpan26
http://www.codeproject.com/Articles/315938/Real-time-Asynchronous-Web-Pages-using-jTable-Sign
http://www.codeproject.com/Articles/404662/SignalR-Group-Notifications
https://magick.codeplex.com/
http://graphicsmagick.codeplex.com/
https://imagemagick.codeplex.com/
https://github.com/dlemstra/Magick.NET
c_sharp cookbook
C# Cookbook
http://shop.oreilly.com/product/9780596003395.do
C# Cookbook, 2nd Edition
http://shop.oreilly.com/product/9780596100636.do
C# 3.0 Cookbook, 3rd Edition
http://shop.oreilly.com/product/9780596516109.do
C# 6.0 Cookbook, 4th Edition
http://shop.oreilly.com/product/0636920037347.do
http://download.csdn.net/detail/gattaca2011/9309483