Educause "is a nonprofit association whose mission is to advance higher education by promoting the intelligent use of information technology."
On the Educause site there is growing collection of resources (presently 55): 7 Things you should know about. These publications in .pdf format (although I haven't checked them all out.) explain in simple language various web based applications.
If you are flummoxed by Flip Camcorders, confused by Creative Commons, excited by e-books, boggled by Blogs, gobsmacked by GoogleWave or worried by Wikipedia then head over to the 7 Things you should know about at Educause and you will be illuminated.