Poker servers? Laws in North America

[dowlinga]

I wasn't really sure where to post this, but does anyone know the laws for location of casino servers. Seems all the poker servers are over seas, leading me to believe they are illegal to run from the States. But, what about Canada and Mexico? Any ideas on their laws and does anyone know any specific servers that are based in either of those countries? Thanks to anyone that can help with some info or links to sites that can answer the question.