Paying for answers online
From the FAQ:
What is the difference between a Google Answers Researcher and a registered user?
Google Answers Researchers are screened and approved independent contractors who are paid for
posting "answers" to the site. Registered users can ask questions and post comments to the site.
However, they cannot post "answers." Users are neither paid for comments that they post, nor are
they charged for comments that are posted to the questions that they ask.