I was looking for info on link list and an article at the link below was an option. When I clicked on it I had a pop up window telling me I was close to the end of my data with my plan. Yet, I have no data limit on my plan. So the following link is for whom ever would like to look into this, or maybe this was pointless.
Sometimes some of the advertising on this site gets past the owner and has stuff like that (for example, if you hover over it 'long enough' it will do stuff like that). It may have been a coincidence.
Further, don't believe online adware that says it knows stuff about you. Just try to escape without clicking anything.