With Image Loop you can easily create fun slideshows with your choice of effects, skins, and backgrounds. Upload images from social networking sites or your personal picture library.
Online Organizer - Plan * Organize * Share
Zoho planner is a tool for online to do lists, reminders, notes, and images. Share it with your friends. Get things done - it's simple & free
Google Wave (currently in preview) is a new online collaboration tool created by Google. It provides the opportunity for asynchronous and synchronous communication among users. Waves allow participants to share resources, images, videos, documents, etc in order to discuss, collaborate, etc. It's a wonderful tool and my guess is that it will only become more powerful when it is open to all and a little more polished. Even in it's current state, it's quite robiust.
Wordle is a toy for generating "word clouds" from text that you provide. The clouds give greater prominence to words that appear more frequently in the source text. You can tweak your clouds with different fonts, layouts, and color schemes. The images you create with Wordle are yours to use however you like. You can print them out, or save them to the Wordle gallery to share with your friends.