I subscribe to the feeds from two groups that offer quite a bit of information online specific to SQL Server and T-SQL:
http://www.sqlservercentral.com/
SQL Server Central has somewhere in the neighborhood of 17 gazillion articles online - all focused on SQL Server. If you are going to be using SQL Server a lot, you really owe it to yourself to be part of their community.
http://www.sswug.org/
SSWUG is an venerable user group with a real focus on learning SQL and real-world tips. It is very good but not SQL Server only (although that does seem to be their focus but it may just be that they have algorithms to tune what they show me).
Finally, of course, you can always ask questions here.
Good luck!