Check into Safari, a collection of thousands of ebooks.  It’s a database of ebooks, so put Safari in here: http://library.ohio-state.edu/screens/databases.html.

If you are looking for a computer manual of any sort, it’s the obvious choice but it also has ebooks on marketing and business, careers, goal-setting and organization.  You’ll find: Africa Rising: How 900 Million African Consumers Offer More Than You Think and also Writing the Successful Thesis and Dissertation: Entering the Conversation.

Good stuff.