A spreadsheet with many first day activities from teachers at all grade levels. Also has websites and twitter names for contacts.

"Web Tools in Action" A wicki where you can post how and why you use a web tool in your classroom. More about implementation than about the tool itself.

Wow! PBL at its best.

View Pure is a simple little tool that strips YouTube viewing of all of the distractions of related videos, comments, and promoted videos. To use View Pure just copy the link of a video into the "purifier," click purify, and your video will be displayed on a blank white background. You can also install the View Pure bookmarklet to accomplish the same goal.

Many good sound effects most free, the rest inexpensive. I can think of many applications including digital story telling. Thanks to "Technology Tidbits" for the link :)