Contextual advertising is when an advertisement is placed on a website based upon the content of the page it's being shown on.  For instance, some of the Google Ads you see on TF have to do with Thailand related businesses because Google has deemed those ads to be more targeted towards people who might be reading a particular page on TF.  

But sometimes, contextual ads can (and do) go wrong.  

lmao

I like the Facebook one with the Registered Sex Offenders ad.

I like ALL of them

Somnamnaaa Google Adds

believe it or not I've trained myself to tune the ads out - I rarely even see them.

At least overtly.... they are probably still very effective subliminally.

Gotta go - need cialis...

where are the TF ones?