I've started to look for a sugarbaby arrangement and have been astounded by the number of sites for this.  I'm guessing that many of them are fake.  Any suggestions on which sites really work?  I live and work in the SF bay area.

Thanks for the help!

Well, if you're really serious about it, Slixa and here depends on your income bracket, their are plenty in SB, but most of the ladies down there, will verify your nest egg and life styles and weigh in if the relationship is sustainable, the other factor to consider is, in SB highly competitive atmosphere, the haven of young handsome rich geeky executives. SF your chances here are low either because the quality ladies are booked for the international executives that resides here especially the Asian Pacific Rim. I don't know how bad you want to compete with these guys but. Good luck man hope you success.

wow sounds like a lot of time to invest !

You don't "book" an SB, and SBs aren't typically out there seeking the highest bidder.  If they are, they are probably hookers trying to pass themselves off as SBs (a bigger problem now than ever given recent events).  

I have spoken with hundreds of potential SBs, and the biggest mistake most guys make is approaching them as if they were hookers...trying to "book" them, using hooker jargon (GFE, BBBJ, etc), and being too forward about "rates".  If you aren't getting at least a 50% response rate in the SF Bay Area SB market, your game is off.

I do agree it can be a bit more expensive than procuring escorts, but not that much more if you play your cards right and the rewards are disproportionately higher for those looking for more than piece of meat to hump for 30 minutes.

seekingarrangement, sugardaddyforme are my personal favorites.. havent found many others that are worth the price of admission...

I'm trying this in a different area(Pa). A lot of girls are not serious that post on the websites. Just have to sort through many profiles. A lot of them have unreasonable expectations for my area. In SF though the world is much different than where I am. I also used arrangement finders.

A personal friend was looking for something similar and he found it on Seeking Arrangement. He is *very* satisfied!  
 
Good luck.

TER is much safer bet. Get an ATF here, safe yourself some time.