Google Answers - Live researchers answer your questions on any topic for a fee.
HelpShare - Online marketplace facilitating the exchange of money for fast solutions. Anyone can post a question and anyone can answer.
Infomarkets - An online information market that anonymously matches seekers of information with providers of information. Experts get paid by charging fees for their answers.
Intota - Experts in industry, technology, science, materials, and business provide telephone, e-mail and project consulting.
Kasamba - Gives users direct access to experts in a wide range of categories. Offers full sound and video facilities in addition to e-mail and chat.
Keen - Service which offers telephone conversations to ask for advice.
Vehicle Doctor - Offering diagnosis of automobile and truck problems.