This is one I am a member of & is legit: link
You answer online surveys & earn points or get entries into sweepstakes where the prize is lots of points. The points are then redeemed for rewards such as gift certificates. Why I like this one over the other available programs I've done:
--they have better rewards available, not just a bunch of overpriced stuff, such as magazine subscriptions that you can get cheaper elsewhere. There is a roughly equivalent point to penny exchange rate, so here your 1000 points is worth $10, not $5
--the prizes are appropriately priced, not overinflated. I was so tired of other places where I'd earn $100 & when I used it, I could only get a $50 gift card to iTunes or something.
--Good rewards choices! I hated not having good choices. I don't want to spend my credits for a "money off" discount on something, for example, using my $100 for $25 off a $75 purchase at a clothing store! This place has Amazon, Applebee's, Macy's, CVS & PayPal reward options for example.
--they don't have rip off surveys! I was so angry with other sites whose survey would collect all sorts of useful info before telling you that you didn't qualify to finish the survey. So instead of full points, you'd get the token offer, say 25 cents, (@mysurvey, you get a sweepstakes entry). But what frosted me was that company paying for the survey was given all this info you already answered supposedly to determine eligibility, but it was still commercially helpful to them. Basically, they got your opinions for a steal instead of having to pay the full amount.
I saw some members have a bunch of these types of websites listed in their favorites list in their profile page. Hopefully, they will answer your discussion!