We mention survey work with a good deal ...the surveys are very good, the pay is meager, and there are many sites that are dubious, or out and out scams.
A few good ones I know is: Toluna, Vivatic, MySurvey,YouGov, SurveyBods, Valued Opinions, The Opinion Panel, iPoll, Global Test Market, Hiving, PanelBase, Harris Poll, Opinion Outpost, Yourword, Pinecone, IPSOS, New Vista. GlobalTestMarket.com. They offer real surveys, and they pay real money. Again...tedious, and earning takes a long, long time.CashCrate.com also pays users to take online surveys. They strike me as legitimate, but I confess, I don't have any first-hand experience with it, so approach with caution...
SurveyScout.com is another possibility, but unlike CashCrate, they charge a membership fee before you can get started (Boo!). I've also heard some negative feedback from users of this site, so proceed with caution..Also sign up for Swagbucks.com which rewards you for surveys as well as simply surfing the web, watching videos and playing games and more ...
good luck...