Could you have picked 3 harder networks to try and create on? Lol. I'm not even sure where to tell you to begin. With Google/Gmail you probably won't find anything for free, and you probably have even less of a chance of it being multi-threaded. Twitter and Facebook are just as strict too honestly. It's by no means impossible or else you wouldn't see people selling accounts, but there's a LOT of work that goes into it. Some of them are doing it be hand even, so just hoping someone's going to fire over some tools probably isn't going to happen. Assuming you did though, you then need proxies, and that's a whole other discussion/topic. Good luck though.