I have been angry with every man and his dog the past few weeks, because my Google searches have been driving me crazy!
It turns out that it is this Dcurrency app, which causes your search results to include INCREDIBLY ANNOYING advertising.
The advertising grows and shrinks, with no option to stop it, which in turn causes the page to shift up and down, up and down, up and down, so that you either barf from sea-sickness, or end-up smashing the monitor against the wall because you always click on a link for a bizarre fetish website or Alcoholics Anonomous, rather than your local football team's homepage!
SHAME ON DCURRENCY!!
P.S. I'd just like to note I'm not a fetishist, nor an alcoholic ;O)