Captaffy - 5:42 am on Jun 1, 2010 (gmt 0)
I felt I should post from the other perspective, because for me IBAs have been a huge annoyance while surfing.
I did my taxes online, using what is probably the biggest online tax preparation service. For the next month, almost every Adsense ad I saw was for this service.
Logged in to a client's domain registrar one day. Saw the registrar's ads everywhere for the next couple of weeks.
Currently I am seeing ads for my hosting service, and have been for about a week.
I find it pretty ridiculous.