There are websites available for anyone interested in learning more about BDSM, if you take the time to do a search.

Castlerealm has always been the go-to for many in the lifestyle, but it's quite out of date and I don't believe the site has been updated in over a year. You can find it at http://www.castlerealm.com

A Dark Whisper is a newer site with a lot of information, but I find more of it to be opinion pieces than pure knowledge. You can find that site at http://www.adarkwhisper.com

Otherwise, I'd say look here. There are threads on a variety of topics and subjects. Do a search for whatever you happen to be looking for and I bet you'll find it. If not, start a thread on the subject. The search button can be found at the top right of your screen.