Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the world, securely and privately show content to your friends and family, or blog the photos and videos you take
Do fun stuff with your digital photos. Create motivational posters, movie posters, magazine covers, badges, mosaics, collages, calendars, frames, and a lot more!
With Letterpop, you can create nice, template-based newsletter, invitations, etc. with photos and text using a drag and drop interface. The lowest account is free. Great resource.