After announcing to the world + dog, that they are offering their own version of OpenDNS, you'd have thought that meant they'd finally gotten serious about security (I know, I'm laughing at the thought too), but nope, Google's results are STILL littered with malicious content that will drive your PC into a frenzy, and drive you to a level of frustration you've never seen.
As a quick example, I've just spent the last 10 mins or so, going through the results for hphosts for the past month, and found the following, all of which will, if fed a Google referer, infect the living daylights out of your computer;
The sites you're taken to that deliver the payload, or act as redirectors to the payload, include;
Worse still, is many of these have been in the results for what is considered in the security world, as a long time (over 1 week for a fake AV site to stay alive, isn't very common, domains usually die anywhere within 6 - 72 hours).
Just one of the many sites listed above, is the typical fake AV site, pretending to scan your computer, and automagically find a plethora of infections, with the end results being to download an infection to your machine, and have you pay them for doing so.
You'll find the IP's and whatnot that are involved below, but suffice to say, the usual suspects are present (Hetzner, CSSGROUP, root eSolutions etc).
Given Google offer their "diagnostics", which points out sites containing infections, and given they have what is without a doubt, one of the largest indexes available, you'd have thought they'd have invested at least a small amount of time, on additional filtering that would enable them to scan a site and give it some sort of fingerprint - a fingerprint that could then be compared to, which would have very easily identified around 90% of the malware you can find via Google (and the above is less than 0.0000001%).
If I can identify this lot in around 10 minutes, and identify it MANUALLY (I have never been a fan of automation as there's too much to go wrong), imagine what Google could save you from if they bothered getting their backsides into gear (and yep, I know Google aren't the only engine affected by this - but they're the largest and most popular).