aloha kakou,
Derechos Humanos is at the forefront of organized protest of SB1070 and HB2281. You can learn about what they are doing and what they need by going to their website:
http://www.derechoshumanosaz.net/index.php?option=com_frontpage&Itemid=1

And you can make a positive contribution to the fight by making a donation.

If anyone else knows of other organizations or other ways to help, please post.

noenoe