What is a good sight for learning american sign language

As it’s said above this is a good website to learn some basic vocab and idioms:

http://www.aslpro.com/cgi-bin/aslpro/aslpro.cgi

also:

http://commtechlab.msu.edu/sites/aslweb/browser.htm

Both are good starting tools because they have videos of the signs made and not just drawings, that sometimes are confusing.

Although, you may need to take a course of ASL or practice with some Deaf in the area where you live. Those sites can give you the vocab, but you’ll need also the grammar (that’s very different that the English word structure).