Fetlife's probably a better overall resource for BDSM. CollarMe's more like Craigslist with a paddle and a strap-on - in other words, a carnal free-for-all. With really bad grammar
Start at your own pace. Don't worry about the rules (and they will tell you a great many rules). And if anyone tells you to call him Master, chances are he's a flaming douchenozzle living in his mom's basement, with tattoos on his face and an insurmountably feathered mullet.
Munches can be fun though. Just don't sit next to the dude dressed like a Druid.