Education
Emagenit - http://www.emagenit.com/
Provides Microsoft Excel/VBA training and guides. Mostly provides services to engineering firms.
Karbosguide.com - http://www.karbosguide.com/
An online PC hardware guide that is aimed at beginners and intermediates. Also offers hardware news.
The Localization Institute - http://www.localizationinstitute.com/
Provides training for certain computer software related to localization and internationalization.