What are the online competitors to google questions? Basically, what
other sites offer answers to a question for a fee similar to this
service?

Hi! Thanks for the question.

Here are other sites answering questions for a fee.

Intota
http://www.intota.com/

Keen
http://www.keen.com/ 

Kasamba
http://www.kasamba.com/

Infomarkets
http://infomarkets.com/

Your Jewish Fairy God Mother
http://www.yourjewishfairygodmother.com/

Ask Anything
http://www.askanything.com/

Bumper Brain
http://www.bumperbrain.com/about_us.cfm?CFID=5326061&CFTOKEN=94416117

Help Share
http://www.helpshare.com/

Advice Trader
http://www.advicetrader.com/home.asp

Ask the Doctor
http://www.afraidtoask.com/askdoc/

Ingenio
http://www.ingenio.com/Default.asp?TF=1 

All Experts
http://www.allexperts.com/

Search terms used:
?ask an expert? ?for a fee?

I hope these links would help you in your research. Before rating this
answer, please ask for a clarification if you have a question or if
you would need further information.
                 
Thanks for visiting us.                
                 
Regards,                 
Easterangel-ga                 
Google Answers Researcher

Well... the answer has some great hits, but also some that aren't on
target and no explanations to separate them. For instance, Keen is an
ask the psychic site - hardly a competitor to google answers. Ask
Anything is customer service software.