Tactics online

[morebeer]

If it has been noted before apologies, but I stumbled across a fantastic tactics site:

chesstempo.com

And the good thing most of the best features are FREE.

[Igor_Goldenberg]

It was mentioned here (http://www.chesschat.org/showpost.php?p=277418&postcount=3).
Nevertheless, it is indeed a good site that I always recommend my students.