Viruses, spyware, adware are a non-issue because I use UNIX and MacOSX. Don't bother with all the bogus claims about hackers attacking uSoft because of market share. As a developer of O/S internals and a designer of computer H/W and S/W for more than 30 years I do know what I am saying. The virus writer who actually creates one for MacOSX will be the most admired 'dude' around so of course they try.
As for Ads and Popups, using Firefox with the adblock extension takes care of that. Slow loading is only an issue when the site is slash.dotted (look it up *g*) and ugly is mostly a factor of over use of Flash and uSoft's non-compliant tools. So that leaves SPAM. I have had the same email address for 12 or more years so it is on every list in the world in every language. Firewall filters, email access filters and junk filters get 99% of it but given the *thousands* of spam per month that is aimed at me 4 or 5 a day get through and 1 or 2 a month of false positives have to be checked for.
PS: There are more than 10,000 hack attempts per week this year so far. All unsuccessful. Get a Mac ![]()
What do you consider the biggest nuisance on the Internet?
Spam
Pop-ups
Spyware/adware
Viruses
Scams (what type?)
Ads (what type?)
Slow-loading Web sites (which ones?)
Ugly Web sites (which ones?)
Other (what is it?)

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic