european in the US

I am from Europe and this summer i am going to spend three months in Maryland. I am betting almost everyday and obviously would like to continue with that while i am in the US.

I dont want to look like a troll, but I really dont know what is the legal situation in the US regarded to online gambling. Could you please tell me, if I would be somehow able to use pinnacle or some of the asian bookies and if not, what bookies would you reccomend to use while I am in the US?

Thanks a lot guys!