I had seen the SiteAdvisor software before, but did not know that you could just check sites online at http://www.siteadvisor.com/sites/
. I found that very handy to check the originating domains for possible spam emails. Websites are tested for spyware, spam and scams so you can search, surf and shop more safely.
If you choose to download their free software, it adds small site rating icons to your search results as well as a browser button and optional search box to alert you to potentially risky sites and help you find safer alternatives. It doesn't affect the speed of your browser. Available for IE or Firefox on Windows, and Firefox on Mac OS.
The SiteAdvisor technology is free, easy to install, easy to use, and doesn't collect any personally identifiable information.