Internet

56k.com
Information and drivers for dial up modems from many different manufacturers.
http://www.56k.com   (review rate bookmark)

Modemhelp.org
Dedicated to modems of all makes and models from POTS to DSL and Cable. Includes drivers, firmware, and troubleshooting info.
http://www.modemhelp.org   (review rate bookmark)

Paypal
Send and receive payments over the internet, or through e-mail. Great for person to person, business, even auctions. Works with credit cards and checking accounts.
http://www.paypal.com/   (review rate bookmark)

YouSendIt
Helps to work around e-mail limitations by allowing for the transfer of large files up to 1GB. Free and paid services available.
http://www.yousendit.com/   (review rate bookmark)