Author has written 37 stories for Song of the Lioness, Protector of the Small Quartet, Mortal Instruments, Hunger Games, 13 Little Blue Envelopes, Circle of Magic, Immortals, Tamora Pierce, Avengers, and Septimus Heap.
GL is a great Tamora Pierce forum. To quote a user, Goldenlake should have been titled "The Lake of Super Friendly And Encouraging Internet Users Who Are Super Friendly And Encouraging".
The King's Own: http://www.thekingsown.org//
TKO is a wonderful Tamora Pierce archive with massive ammounts of Tammy fic. I personally have more posted there than here. Reviews are on the rise, so I really encourage heading over there!