Flickr is almost certainly the best online photo management and sharing application in the world.

With the Flickr Free account you get:

20 MB monthly upload limit 3 photosets Photostream views limited to the 200 most recent images Storage of smaller (resized) images

After doing a lot of thinking I finally decided to go for the Flickr Pro Account ! This is what you'll get with a Flickr Pro Account

2 GB monthly upload limit Unlimited storage Unlimited bandwidth Unlimited photosets Permanent archiving of high-resolution original images The ability to replace a photo Ad-free browsing and sharing ...