RSS+Feeds+Bonanza

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Here is a great list of things you can use RSS to track:
 * [|blogs]
 * [|wiki edits]
 * [|Google Video searches]
 * [|del.icio.us users]
 * [|del.icio.us tag searches]
 * [|Flickr users]
 * [|Librarian Internet Index Searches]
 * [|Free iTunes Downloads]
 * [|Science and Math videos that are peer reviewed and totally classroom safe]
 * [|Your favorite newspaper writer]
 * [|Your favorite newspaper section]
 * [|Google News Searches]
 * and many more.....

Image source: [|jrhode]'s [|Photostream] on Flickr.