www.mtccard.com is also good. just be wary of the really cheap cards like "mycarribeancard" b/c it didn't work for me calling a cell phone in the DR. what i usally do is go down to the local liquor store and buy $2 or $5 phone cards from there. they will last me for a full phone call, cheaper then most phone services. i also use optimumvoice long distance, its 15 cents a minute. for me i can't find anything cheaper b/c i'm calling a cell phone as opposed to a land line.