Reactive Extension (Rx) Link

 (not yet) 101 Rx Samples
 http://rxwiki.wikidot.com/101samples#toc26

Using Reactive Extensions in Silverlight
http://www.silverlightshow.net/items/Using-Reactive-Extensions-in-Silverlight.aspx

Reactive Extensions for .NET ( “stuff happens” )
http://mtaulty.com/communityserver/blogs/mike_taultys_blog/archive/2010/08/18/reactive-extensions-for-net-stuff-happens.aspx

Concurrent Web Service Calls from Windows Phone 7 using Rx
http://zoltanarvai.com/

Bridging with Existing .NET Events
http://msdn.microsoft.com/ko-kr/library/hh242978(v=vs.103).aspx

Where Am I?
http://compiledexperience.com/windows-phone/tutorials/where-am-i

Using a new pattern to call the network with Reactive Extensions
http://www.silverlightplayground.org/post/2011/03/30/Using-a-new-pattern-to-call-the-network-with-Reactive-Extensions.aspx

Threading recipes: the many ways of spawning background works in Silverlight
http://www.silverlightshow.net/items/Threading-recipes-the-many-ways-of-spawning-background-works-in-Silverlight.aspx

Simple Asynchronous Background Task Processing with Progress Dialog (Silverlight Solution)
http://www.codeproject.com/Articles/72962/Simple-Asynchronous-Background-Task-Processing-wit?msg=4140010#xx4140010xx

Querying Observable Sequences using LINQ Operators
http://msdn.microsoft.com/ko-kr/library/hh242983(v=vs.103).aspx

[WP7Dev] Using the WebClient with Reactive Extensions for Effective Asynchronous Downloads
http://www.jaylee.org/post/2010/06/22/WP7Dev-Using-the-WebClient-with-Reactive-Extensions-for-Effective-Asynchronous-Downloads.aspx