Need research ideas

Hello Fellow Geeks...
In my Principles of Information Security class, we are beginning our semester projects. I am looking for suggestions for research resources. The following was provided by our instructor:

• Define and explain security malware problems that users may face with the use of desktop or laptop computers
• How to know if malware exists, how to protect computing devices from malware and what to do if your computer has malware
• Discuss features of particular virus and malware software that is free or can be purchased.
• Prepare a table of at least 5 products indicating price, functionality, ease of use, rated protection

While there is certainly a wealth of information available on the web, I need a bit of help separating the factual & thorough from the opinion & fragmented information. I know that many of you are experts on such a topic. Your suggestions would be appreciated.

Regards,
toehead