Well, on my Thief site I have a large number of guides, and I’m still working on more.
One thing I’m working on at the moment is exactly what you asked for; an extensive guide on skills and traits and such to help people create their own builds rather than just randomly listing a mass of ready-made builds.
I expect that to be finished some time in the next week.
There’s already some stuff that would be very helpful to you though;
http://www.blackwolfbrotherhood.com/
I like that site, I’ve read pretty much all the information. Can I make one suggestion? Please change that Gothic font to something more readable. I understand it adds to the lore, but your site should be information first…flash bling second, imo