Flickr helps you organize that huge mass of photos you have and offers a way for you and your friends and family - or customers, to tell stories and convey a message.
Attractive interface featuring thumbnails and the ability to move around to images with the same tags, sets or groups.
Various upload methods, including by the Web, email and mobile phone. Can make photos into prints, calling cards, photo-books, slideshow-DVDs and postage stamps.
Users get up to 100 MB of image upload monthly for free. A pro account allows for unlimited photo storage for as little as $1.87 per month.