Safari Books online is the e-reference library for IT professionals or anyone wanting to know more about the IT field. Subjects covered are:
Computer science, certification, databases, desktop applications, desktop publishing, enterprise computing, graphics, human-computer interaction, hardware, internet, IT management, markup languages, multimedia, networking, operating systems, programming, security, software engineering (and more...)
With over 1600 Safari books to choose from, you should be able to find what you are looking for. Publishers in the e-book database include: O'Reilly, Prentice Hall, Cisco Press, Peachpit Press, John Wiley & Sons, New Riders Publishing, Macromedia, Adobe Press and more.
The subscription allows for 4 simultaneous users and includes the current editions only. The titles can also be downloaded or printed out for academic non-commercial purposes. In addition, titles and articles can be linked to from Blackboard/Tracs and shared for scholarly purposes.