is ClixSense a scam or legit

ClixSense.com is a site that will pay you to view ads on the Web. although ClixSense is not a scam,but the pay rate is very low.if you want high paying ads,you need to pay for premium membership
The highest paying ad I had available to me was for 3 cents and that was only once. I’ve had a handful of 2 cent ads but mostly they are 1 cent ads

ClixSense does pay, but they charge a $3 check fee each time you request payment. But they do pay you. I upgraded for $10 a year and get more ads to click that lets me earn faster. I would recommend redeeming for advertising though because they don't charge you $3. You can redeem for advertising and promote your other paid to click sites and earn more that way by getting referrals for them
if you want to earn money by click ads ,there are some ptc site that similar to ClixSense
These are three that I've found to be very good.

http://www.BuildingWealthDaily.com

http://www.MoneyLovesMe.tv

http://www.AttractingWealthDaily.com

The first one is similar to ClixSense but you can also buy advertising packages and then get 150% of your ad dollars back as cash rebates. Real deal.

Money loves me is a cash generating site where friends help friends. Totally legal because you can gift a certain amount of money a year and it's only a one-time fee of $25 to start.