I agree with kaempferrand:
theeroticreview.com is great, but only "VIP" members (i.e. you have submitted 2 approved reviews, or have paid a membership) get full details. Nice search options even for non-VIP members.
BestGFE is #2 - decent chat forums (ala TERB), and you are 70/30 for good/bad escorts advertising. I haven't come across a search interface (I have not used this site a lot myself)
Defintely avoid:
backpage.com
eros.com
Also a heads up - Baltimore and "NOVA" and "DMV" ("NOrthern VirginiA" and "D.C. / Maryland / Virginia") has seen lots of LE busts, and US law is MUCH different than Canadian when it comes to escorts. Be ready for "pre-screening" requirements, including numbers to be called back on. And it's tough to weed out the 300.00 per hour girls from the "entry fee is 300.00, if you want me to touch you, start tipping" girls.
I would highly recommend you take a trip south from Batlimore and head to Rockville to meet Brooklyn. Personal experience with her in a duo was MIND BLOWING. Although I said avoid eros.com, that's where I found Brooklyn. My TOFTT habits actually paid off for once
http://www.eros-dc.com/files/176269.htm
Her current duo partner looks 10x hotter than the one she used when I saw her. Brooklyn's pics do her no justice, and she is an awesome person to boot. Not a spinner, but she knows how to use her assets!