SMART Notebook software is used with the SMART Interactive Whiteboard for creating, delivering and managing interactive lessons within a single application.
Delicious is a free social bookmarking tool. Store your bookmarks online, tag them and share them with your colleagues and students. Easy to use to search for other bookmarked resources.
Wordle is a word cloud generator. Copy in some text and generate the word cloud.
Interesting uses could include having students paste in a paper or summary to see the most common usage of words, try using famous speeches, poems, rss, URLs, or del.ico.us usernames
Google Calendar is a free web-based calendar which you can use for your own personal activities or to share with others. It can be integrated into iGoogle and you can also embed it into web pages/blogs.
Flickr is a place where you can store your photos, tag them and share them with others either through a link to the site or by embedding them in your blog or web page.
With Movie Maker 2.1, you can create, edit, and share movies. Build your movie with a few simple drag-and-drops. Delete bad shots and include only the best scenes. Then share your movie via the Web, e-mail, or CD.