1. The website www.lynda.com has dozens of multimedia learning tools for a wide range of computer based applications. you can see previews at the website.
2. Luminous Landscape. Extensive site with reviews, tutorials, technical information, how-to's.
3. The British magazine Practical Photography has many short video tutorials on their website. Some very good examples follow:
(b) Printing photos
(c) Cleaning the sensor in a DLSR
4. PowerMax Web Photo School -- tutorials on basic use of digital camera, using a Canon Rebel, photo resolution and printing, white balance,, using a tripod, and so on.
6. The PERFECT PICTURE School of Photography (associated with Adorama). Offers a wide variety of online courses.
7. NIKON HELP LINE - This website has many short video explanations of use to Nikon DSLR users. They review Nikon products and tutorials on equipment care, basic camera and flash use, and various "how-to" segments.
8. BetterPhoto.com. Online learning.