I received a tip yesterday via a DigitalPoint Forums thread that Google was showing a lot of malware for certain keywords, including a search for [racketeering]. When you searched for these results, Google was showing search results that contained spyware and malware.
This was posted at DigitalPoint Forums at about 3pm yesterday. I confirmed seeing the spyware/malware results in Google around 4pm yesterday. I knew Google was quick at malware detection and removal, so I thought it would be a good test to see how long it will last. I did not notify Google, I did not flag the thread - all I did was wait. Now, this morning, less than 24 hours since the results were first spotting in Google, they are now gone.
Forum discussion at DigitalPoint Forums.