I've learned that it takes years to build up trust, and it only takes suspicion, not proof, to destroy it.
While it's a good thing that anonymity is built-in to the core of bitcoins, trading of bitcoins has been riddled with scam spawned fears and doubts.
bitXfieds utilize the strong aspect of face-to-face trading within your local area in hopes fix this problem.
temp. link: http://n2ation.com/bitxfieds/
Currently it supports NYC, USA where I locally reside.
other area recommendations are welcome, as well as categories.