It would be good to hear back any feedback on my site, studylance.com. Students can ask questions and tutors respond with answers, the students see a preview until they pay the tutor.<p>Any comments are appreciated. Im sure someone will ask if its cheating, its not, Im more interested in usability and general feedback rather than comments on the overall concept.<p>Many thanks!
However, your paid model feels a lot like ExpertSexchange.com, a much loathed site, and it seems you are dealing in very small dollar amounts which means that managing the cost/payment process creates increased overhead and adds complexity to the system where it may not be needed, and the dollar amounts may not be high enough to be worth the extra headaches. (if an answer was worth $10-20 I'd be singing a different tune).
There may be other revenue opportunities outside of advertising (though you're in the right market for lots of advertisers).
The amounts are in £pounds for the moment, I'm going to add the option to view in USDollars soon.
The values are low for the moment you're right!