I guess Pond5 and Pixmac, mentioned here in the low earners, will be rising very soon. Pixmac joined Pond5  a rapidly growing global marketplace for stock media content, offering the largest royalty-free stock video collection, including millions of images, music tracks, sound effects, and Adobe After Effects project templates, and 3D models.
Joining Pond5 will more than double their traffic and artist base and will eventually make their comprehensive collection of stock media available in >15 languages. 
Should cause some stir within the industry.  Especially because the are offering ALL contributors a 50%!!! royalty over prices they decide instead of subsription packages leaving the contributor with low royalties.