EXP
http://www.exp.com/

"Get real help from live experts"

The site provides immediate advice from live experts on call. They connect a phone call without revealing the phone number, and provide chat rooms and email addresses. It's a place for buyer and seller to meet.

Buyer and seller use the site tools to contact each other and agree on a price for a service. There is also a public questions section. Most sellers answer briefly and offer a price. Buyers can contact them and negotiate from there. Buyers and sellers rate each other when the invoice is sent and received.

Live help by email and telephone is necessarily offsite. Publicly posted questions and their answers are mostly negotiations toward the final offsite answer.

Buyers pay per minute on the telephone, at the sellers rate. Chat and email contact is free until you hire the expert. Invoices are sent and paid via the site.