Stockxpert
Receive 50% commission. Free Membership.
Receive 65% commission. Free Membership.
Receive 100% commission. Set the price. Also, earn money completing assignments. Free and Paid Memberships.

http://www.superstock.com/resultsframe.asp?tag=submissions
Earn money for your photographs. Submit a questionnaire for consideration.

http://submit.shutterstock.com
Sell your stock images. Earn $0.25 each time your photo is downloaded. Refer stock buyers and earn 20% of their subscription fee. Refer photographers and earn $0.03 for each of their downloads.
Earn points for taking surveys and answering TV trivia. Use the points to compete in auctions, shop or enter sweepstakes.
Earn money helping students with homework. Receive 82% commission when anyone purchases your solution.

http://www.knowmoremedia.com/write-for-us.html
Know More Media is a blog network that specializes in business information and news. They are hiring business experts who can blog about one specific topic such as automotive, customer service, construction, finance, real estate, marketing and more.
Experts give answers via chat and are rewarded by the asker if the response is satisfactory. There is a 20% fee when cashing out.
Get paid to listen to new music. Promosquad members receive points for rating and reviewing songs & artists. Points can then be exchanged for a variety of prizes including CDs, DVDs, posters and videogame systems.
Members can also win great prizes by entering ongoing contests and raffles. Prizes can only be shipped to U.S. mailing addresses