Two good places to start:
1. Eccie's infoshare area. It's for ladies, only, and has a wealth of information.
2. Order the two books featured on this site:
http://www.theinternetescortshandbook.com/
Very no-nonsense advice (inexpensive, too!) and an excellent base to start from.
When I was learning about "this", I read a bunch of hooker books. Delores French's book, "Working", is a really good one to read and learn how things were done in the past decades.
Read and observe. And remember when asking others, "This story is to be sold, not told". So don't think too badly of someone if they're not just jumping up and down to take you under their wing.
Many of us learned this craft through the school of hard knocks.
Best,
Elisabeth