How can you sell your photos on internet:

Shutterstock
Is the largest subscription-based stock photo agency in the world.
Stock photography is existing photography that can be used for print and web ads, in books and magazines, in news, on websites, in brochures and packaging, and in a large number of custom applications, according to the licensing terms to which the photographer and buyer have agreed. Using an image that already exists saves the purchaser the time and expense of a custom photo shoot.

I started to submit photos in February 2009 and now I have 120 photos in my gallery and 180$ in only 44 days. There are some types of downloads: 25-A-Day Downloads with 0.25$/download ; On Demand Downloads with 1.88$/download and Enhanced Downloads with 28$/download. For registration you must submit the first 10 photos or illustrations for review. After they are accepted you can start to make money and submit how many pictures do you want :) The minimum size requirement is 4MP; There is no maximum size limit for photos, but illustrations cannot exceed 25MP.

Payout: You must accumulate at least $75 to be paid by Paypal or Moneybookers, or $300 to be paid by paper check. All earnings are brought forward into the next pay period until you reach the minimum, at which time a payout will be issued automatically.
Maybe you ask ``At 25 cents per download, how am I going to make any money?``
Buyers may download a few hundred pictures in a single month's membership. So the more images you have in your library, the more you can make! The 0.25$ per download payout adds up fast - for example, if your images are downloaded 1000 times over the course of a month, you will receive $250 for that month! And after earning a total of $500, your rate will increase to 0.33$ per download, with a tiered set of pay increases as you reach the $3,000 and $10,000 milestones. If you make $250 per month, that's $3000 per year from images that would normally be collecting dust on your hard disk :)

I hope you get the idea :D For any questions you can contact me at foreigner_fisher@yahoo.com
Here's the (FREE) registration link :) Good luck !!!
Submit Photos to Shutterstock and make $$$!