[Discover] Threading in C# - Part 2 - Basic Synchronization http://www.albahari.com/threading/part2.aspx
(.net tutoriales programacion threadsafety) 
[Discover] Java theory and practice: Introduction to nonblocking algorithms http://www.ibm.com/developerworks/java/library/j-jtp04186/index.html (java algorithms concurrency threads)
[Discover] Moserware: How Do Locks Lock? http://www.moserware.com/2008/09/how-do-locks-lock.html (concurrency .net synchronization locking)
[Discover] theADOguy - Rant: Executing Code on the UI Thread in Silverlight 2 http://adoguy.com/2008/05/06/Executing_Code_on_the_UI_Thread_in_Silverlight_2.aspx (threading silverlight)
[Discover] Java theory and practice: Introduction to nonblocking algorithms http://www.ibm.com/developerworks/java/library/j-jtp04186/index.html (java algorithms concurrency threads)
[Discover] Moserware: How Do Locks Lock? http://www.moserware.com/2008/09/how-do-locks-lock.html (concurrency .net synchronization locking)
[Discover] theADOguy - Rant: Executing Code on the UI Thread in Silverlight 2 http://adoguy.com/2008/05/06/Executing_Code_on_the_UI_Thread_in_Silverlight_2.aspx (threading silverlight)