dowlingw writes "It looks like for the moment at least, all Google results are failing the malware checks and being listed with a warning 'This site may harm your computer,' including all pages from Google themselves. Users trying to visit pages at search results will only be able to proceed via manual manipulation of the search result link to remove the Google click-through (which is also broken). Until Google fixes this bug, it looks Google web search is useless." Update: 01/31 at 15:16 GMT by SS: The problem now appears to be fixed.
Update: 01/31 at 22:01 GMT by KD : Google has now posted an explanation, apologizing and taking responsibility for the "human error" that led to the problem.