Remote Control Services

LogMeIn - Allows for remote control of your PC from anywhere across the Internet.

Internet Search Engines

Google - The world's premier internet search engine

Free Internet Access

NetZero - Provides free dialup Internet Access Services

Free Email Services

Gmail - Google's version of free, web based email.
Yahoo - Yahoo's version
Hotmail - Microsoft's version

Spyware Removal Tools

Ad-Aware - Lavasoft's excellent Spy-Ware Removal Tool (Get the SE Personal Edition, its free and works quite well)
Spybot - Almost as good as Ad-Aware and also free.

Anti-Virus Software

McAfee - Probably the best commercial Anti-Virus Software made today.
Symantec - Makers of Norton Anti-Virus and other system utilities.