The number of Americans older than 65 using the Internet rose more than 160 percent since 2000, according to the Pew Internet and American Life Project.
During the same period, no other age segment grew by more than 70 percent.
For many, it's a question of economics, as seniors seek access to the lower-priced goods - including prescription drugs - that are the hallmark of Internet commerce. They also want to keep up with the growing amount of information that has shifted to the Web and stay connected to friends and family.
AARP offers many courses - including a driver safety program - on its Web site, in addition to listings of help centers, medical assistance and prescription information.
When Medicare made sweeping changes to its benefit plans a year ago, the most accurate and up-to-date information was available on the Internet.