Stock Photo: Sell your microstock photos online through ShutterStock, iStockPhoto, Fotolia, Dreamstime

Did you know that you can earn some money by selling your pictures online?

It's called stock photography, all you need to do is to register for free to one or more agencies and start uploading your pictures. This is a legitimate online business, NOT a get-rich scheme. Nevertheless, please beware of scams: only register and upload to reputable agencies.

Your pictures will continue to generate revenues, so this is a legitimate passive income. You will not probably get rich but you will certainly earn some extra money online.

These are the ones to which I am currently submitting pictures - I earn about 200 Pounds (about $400) each month, with a very limited portfolio; the more good pictures you upload and get accepted, the more you will earn:

Visit the official Fotolia website

Minimum picture size: 4 MP

Payment method: Paypal

Register now for free, either to buy or sell photos online with Fotolia

Visit the official ShutterStock website

Payment method: Paypal

Register now for free, either to buy or sell photos online with ShutterStock

Visit the official Dreamstime website

Minimum picture size: 3 MP

Payment method: Paypal

Register now for free, either to buy or sell photos online with Dreamstime

Tip: since registration is free with all the above agencies, please register to all to improve your earning by selling photos: the great thing is that you are allowed to sell the same photos to all sites, reaching different markets and people