Wolfram|Alpha: Computational Knowledge Engine. FindHow - The How-To Search Engine. SchoolWAX TV. Explore and Create Free Timelines. WatchKnowLearn - Free Educational Videos for K-12 Students. The Q&A wiki.
WordPress.tv. Free technology teacher training videos for teachers. Earth album alpha - a slicker google maps + flickr mash-up. Free Summarizer, an online automatic tool to summarize any text or article. Anyclip - Any Moment, from Any Film | Anyclip. Precipitate - Your cloud data at your fingertips. Note: This project is not currently maintained, and the last builds no longer function correctly with the current versions of the Google services listed below. Bookmarks no longer sync, for example, nor does the full text of Docs. Significant rewriting would be necessary to restore functionality. There are no current plans for a rewrite, but the project is open source, and patches are welcome.
Precipitate lets you search for and launch the information you have stored in the cloud from within Spotlight or Quick Search Box. Google Docs (including Google Apps accounts) Google Bookmarks Picasa Web Albums Precipitate works by creating files on your machine that are imported by Spotlight, then periodically checking in with the server and updating the local files to reflect any changes.
Open the Precipitate preference pane, and install it either for yourself or for all users. Current versions of Precipitate require OS X 10.5 or later. 10.4 users should download 1.0.5.