I found out about WikiVid while reading John Nack's blog...John Nack on Adobe... which is an excellent link in itself.
http://blogs.adobe.com/jnack/
Here's the link to WikiVid's main page:
http://wikivid.com/index.php/Main_page
From WikiVid's main page:
Wikivid is an encyclopedia of informative videos. Each content page is made up of links to free videos laid out as a video-course for anyone to watch and learn.
They also have video links to lots of other software applications.
Edit: YouTube is another place to find lots of Photoshop videos. WikiVid has a larger selection of Photoshop videos than for Elements but from reading their main page it's a work in progress.