AnswersNow - Allows users to ask questions. Prices are based on length of desired response.Includes legal, finance, science, general knowledge, academic, etc.
Ask The Neurologist - Provides articles and forums about neurological conditions and diagnoses where MDs answer user questions in exchange for a donation.
BumperBrain - Allows users to pay for experts, technical assistance, web searching and document delivery.
LivePerson - Provides experts via chat, video, or email.
Online Doctor Advice - Allows users to register, pay, and ask a medical question. Answers are provided by doctors who chose to participate.
Rogomo - Provides profile information and access to experts who set their own per-minute fees for their services. Includes demo and free registration.
Tutor-Homework.com - Ask questions and get answers in chemistry, math, physics, statistics, business, finance, advanced math, and engineering. Offers homework help, online tutoring, and assistance with online classes.
UClue - Ask questions and browse existing answers from experts in various categories.
Your Jewish Fairy Godmother - Offers inspiration, marketing ideas, research, and negotiating. Advice on spiritual matters and relationships.