Google have started promoting porn and gambling on seemingly innocent terms! No I am not joking or spreading some rumour to gain links. I happened to be looking for a (London) tube map the other day and lazily typed in "tube". 

Below are screenshots of the results:

Full page of results below, if you want to view the full images right click and  choose view
image, at least in FF, dont know how you do it in IE, easiest way is
problably to switch to Firefox ;-) :

I am not a prude by any means however I think that Google needs to seriously tighten up their results as not everyone logs in and sets their preferences.  This is a term that is perfectly innocent and natural for any kid in London to type it.  Its also perfectly reasonable for their parents not to expect them to be driven by Google towards PORN AND GAMLBING.

Its a bloody disgrace, Mr. Cutts if I had a site that purported to be about the Tube and then pushed people to / linked to porn and gambling, would i get a Google penalty? Would this be considered acceptable?