Common Craft is a company that produces instructional videos, and makes some of them available free on the web. Many of the videos explain different aspects of the social, collaborative web (such as Twitter, wikis, and podcasting), but their most recent covers a few basics about web searching that will be of great use to many web users.
They also occasionally do something completely non-internet related, like the recent video on how we elect our presidents.
And just in time for Halloween, "Zombies in Plain English."