keeveek: You may also want to use Avast! Free Antivirus. It contains similiar plugin with site ratings, in 5 grade scale.
second. been using avast for quite some time. and my browsing habits are far from safe. i got hundreds of viruses over the years but never an infection.
never install anything from a website which promises you free porn/anime/movies.
have a proper anitvirus installed. they are reviewed every year by biggest computer magazines on the planet. go there if you want to find out what program is the best for your buck.
never click links which seem random. if your friend on msn, steam, fb say click here as it is something awesome don't blindly click it. check whether your friend is a real boy/girl
formats once a year or 1.5... it also makes your computer run smooth.
avoid downloading rar/zip files from unknown sources (like porn from rapidshare.) mp4, avi, mpg files are perfectly okay. i would be vary of wmv and mov tough.
keep your bank accounts secured and if you can have additional security implemented so even if someone gets access to your account they would not be able to do much.
limit stuff on a system disk. i tend to use desktop as a workbench for downloads, picture edits and stuff like that but my data, programs, and other valuable things are on separate partitions/disks. so even if i get a virus (which had not yet happened to me) i can just purge c drive without worrying about loss of something irreplaceable. loathe tough that some game keep saves forces save folders to be on c drive. who was dumb enough to think that is a correct thing do to?