Are You Infected with Spyware?
Spyware can attack anyone who visits corrupt websites, clicks on deceptive pop-ups or views a spam email message–simply put, if you're online, you're at risk. 

Anti-Spyware Software helps you control unsolicited marketing and hidden tracking devices on your PC.  This site provides a directory of removal tools.
Are you receiving to much SPAM email?
Spam is a flooding the Internet with many copies of the same message, in an attempt to force the message on people who would not otherwise choose to receive it. Most spam is commercial advertising, often for dubious products, get-rich-quick schemes, or quasi-legal services. Spam costs the sender very little to send -- most of the costs are paid for by the recipient or the carriers rather than by the sender.  This site provides a directory of email filtering tools.
Are You Infected with a Virus?
A virus is a parasitic program written intentionally to enter a computer without the users permission or knowledge. 

The word parasite is used because a virus attaches to files or boot sectors and replicates itself, thus continuing to spread. Though some virus's do little but replicate others can cause serious damage or effect program and system performance. A virus should never be assumed harmless and left on a system.

A functional definition of a computer virus must include the fact that it creates damage to the computer system "infected"; either inadvertently or deliberately. 

We all use computers and that is a good reason to become aware of computer viruses and the precautions to take to keep from being infected.  This site provides a directory of removal tools. 
Are You Infected with Adware and Popups?
Adware or advertising-supported software is any software application in which advertisements are displayed while the program is running. 

These applications include additional code that displays the ads in pop-up windows or through a bar that appears on a computer screen. 

Adware helps recover programming development costs, and helps to hold down the price of the application for the user (even making it free of charge)—and, of course, it can give programmers a profit, which helps to motivate them to write, maintain, and upgrade valuable software.

Some adware is also shareware, in that users are given the option to pay for a "registered" or "licensed" copy, which typically does away with the advertisements.

Some adware programs have been criticized for occasionally including code that tracks a user's personal information and passes it on to third parties, without the user's authorization or knowledge.  This site provides a directory of removal tools.