Adultfolio has by far been the greatest platform for me to meet people and gain work from, the site layout is intuitive and easy to understand as is the messaging and media manager side of things.
There are plenty of members and the forum is fun and helpful.

since i have joined on a recommendation from a client I have found the site very useful for finding models my client requires but also generating more business and promoting myself more if you put a little work into it you can reap tremendous rewards, also made a few good contacts in other areas that is very useful