Nice short and to the point blog article and 4+ min youtube video by Brent Ozar
How to Create Deadlocks and Troubleshoot Them
Excellent information on creating SQL server deadlocks, the TSQL scripts to create the deadlock and use of sp_blizlock to analyze the deadlock.
DBAs don’t ignore all your production deadlocks! Find out the root cause of those deadlocks with this blog article and youtube video.