Google’s had their own interstitial warning page on malware results since 2006. If you clicked through to a URL which was on their Safe Browsing Malware or Phishing Blacklists you would be served the following warning page:

Although Google stopped you on your way to the target page, you were still presented with an option to [...]

The Guardian reports that bloggers are fighting back against people who use their sites to subvert search engine rankings or to host malware.
Barry Welford considers himself lucky. The weekend he decided one of his blogs, Staygolinks.com, needed a cleanup was the same time a hacker chose to splatter the site with a host of unwanted [...]

Mozilla has integrated Google’s new Safe Browsing Blacklist into the Firefox browser. Users who try to access a page that has been flagged as dangerous will be given an warning page, urging them not to continue.
Phishing Protection is turned on by default in Firefox 2 or later, and works by checking the sites that you [...]