For every answer you give, report you turn in and every Web Share you complete, you rack up points and you can cash these points in for rewards, most in the form of gift cards.
When Crowdtap first started, they used to let you cash out your points for $$$, but once people caught on to how awesome this site was they did away with that option. Just to give you an idea what you are working for, here are a list of their current rewards:
$25 or $10 Amazon Gift Card
$15 Peeled Snacks gift card
$10 Gift Card to FloraFlora
Keep on Whored-ing, and keep on Tappin!