A great place to start when you are new to BL is Basic Drug Discussion - it's the current featured forum here, check out the sticky at the top of this forum for more info. We're a friendly bunch and are happy to answer any basic drugs/HR questions you might have - such as the one you have just asked! Feel free to come over and start your own thread about your query and our lovely staff, regulars and random passers by will do their best to answer it for you
We've also got a lovely social where you can get to know your fellow BLers, and a "Fact of the Month" competition - this month we are looking for interesting/cool/useful facts about stimulants and uppers. Check out the sticky in BDD for the entries so far, and post your fact in our social thread for a chance to win a custom title and widespread admiration and respect
I'm one of the BDD mods and am coming in here spreading the word about how awesome we are!