Free Online Resources
Peterson's offers numerous services. From it, you can can search for colleges, undergraduate and graduate programs, and test helps for the SAT, GRE, etc.
USA.gov is the official U.S. gateway to all government information, allowing searches of more than 51 million web pages from federal and state governments, the District of Columbia and U.S. territories. (Source:WorldCat)
This is an online version of the yellow pages of the phone book.