Paypal--a subsidiary of e-bay--appears on more and more web pages as a way to pay securely online. How paypal works is fairly simple--you set up an account using either a credit card or bank account. Once you've created an account, you can track your transactions. Personal accounts are free for both sending and receiving money. The site answers many security-related questions for both buyers and sellers, as well as general security questions.

For this week in geek, I'm Mark Avery.