What websites should I stay away from to avoid viruses?

[Hot Chick]

Facebook & other social networking sites do have serious security threats, even the FBI issued a warning back in 2009
http://www.ic3.gov/media/2009/091001.aspx
Now Facebook scams continue to "soar"
http://www.net-security.org/secworld.php?id=10340

So yes, in general stay away from social networking, and the other sites the Time Warner Cable guy told you.

Norton, like McAfee, are perhaps the the two most popular antivirus programs that people use; of course scammers know this, that is why they first test their viruses on these popular programs to make sure they can get around them before releasing them, that is why it is better if you use a less popular program
http://www.zdnet.com.au/why-popular-anti...264249.htm

Make sure you are not using any version of Internet Explorer, several governments in the past have warned that you should not use it.
http://www.abc.net.au/news/stories/2010/...795684.htm
And IE is still a serious problem.
http://www.informationweek.com/news/secu...ed_IWK_All
http://news.cnet.com/8301-27080_3-20027620-245.html

Use an alternate browser (personally, I like Firefox):
https://hdc.tamu.edu/reference/documenta...ion_id=592
Install WOT on Firefox & it will automatically block dangerous sites
https://addons.mozilla.org/en-US/firefox/addon/3456/