Curious about viruses, worms, and trojans? If you are, then click on the previous sentence - the article is a good basic primer on the subject. Also of interest, the CIAC HoaxBusters website explains what hoaxes are and includes a large database of them to help you weed out the hoaxes from the real concerns. Here at the NSA Security website are a fairly complete list of Security Recommendations for various software applications and Operating Systems.