Buy, sell and trade advice and information.

Windows, Mac OS X, Linux, and other tech support questions answered by published experts for a yearly fee. Includes signup information and author/expert profiles.

Fee based program to ask a physician for opinions related to medical conditions.

Get answers to questions on many subjects. Questioner posts question, views bids to answer, and selects best proposal.

Researchers answer questions on any topic for a fee determined by the submitter.

Aims to put people who are seeking information in direct contact with other people who have the answers.

For verbally abusive people and the codependents who love them.

Live researchers answer your questions on any topic for a fee.

Online marketplace facilitating the exchange of money for fast solutions. Anyone can post a question and anyone can answer.

An online information market that anonymously matches seekers of information with providers of information. Experts get paid by charging fees for their answers.

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.

Service which offers telephone conversations to ask for advice.

Offering diagnosis of automobile and truck problems.

Offers inspiration, marketing ideas, research, and negotiating.