ftwb05 - 9:52 am on Dec 17, 2007 (gmt 0)

I use Youtube to host my videos too, and to add to the points already made:

Obviously have your web address in the video (I use just the domain name, eg www.widget.com - people can remember that!)

Put the link to the page right at the beginning of your youtube description.

Get your youtube title, tags and description spot on, your video will show up in Google Video Search (Duh!) but could also come up in general search.

Link to your website in your profile.

Make sure you respond to questions.

Youtube referred just under 1% of my visitors to one of my sites in the last month (not counting people using the address bar) - they spent 40% more time on my site than the average, and bounced about 5% less than the average. (Isn't analytics great!)