"Noteflight® is an online music writing application that lets you create, view, print and hear music notation with professional quality, right in your web browser. Work on a score from any computer on the Internet, share it with other users, and embed it in your own pages. Noteflight is free for individual use. "
Very handy tool lets you share just a portion of an online video. You select the start and end times, and the site gives you both an embed code and link to the video snippet.
Not new, but worth saving--free tool to record and share podcasts via link or embed code. Great for newbies and young students--no registration required.