The sites below are other Citrix and Terminal service related sites. Feel free to recommend a link to me.

http://www.citrix.com/
The official Citrix site

http://www.brianmadden.com/
Independent Citrix, Terminal Server, Server-Based Computing, and Thin Client Resource

http://www.jasonconger.com/
Extending your Citrix and Terminal Server environment using .NET and other technologies.

http://www.printingsupport.com/
This site by Stefan Vermeulen is dedicated to solving problems with printing in the terminal services and citrix world.

http://www.dabcc.com/
Site not only dedicated to Citrix but also application deployment, management and monitoring on laptops, workstations, AND Citrix / Terminal Services servers.

http://www.pubforum.net/
If you are a Microsoft Terminal Services or Citrix Professional or are involved in Server Base Computing in general who want to get the best knowledge from the best industry experts, extend your contacts list with a lot of Microsoft Terminal Services and Citrix gurus all around the world? Then the PubForum event is exactly what you need!

http://www.thompson.co.za/
Basic website with links to a variety of other Citrix and Terminal Server websites and forums!