Google Adsense re-targeting is very clever

I’m in Newbury, England at the moment for work. I thought it would be a good opportunity to buy a decent zoom lens for my SLR, so I’ve been using Google to do some research on a couple of lenses for my Canon camera.
There’s a great lens that has just been released by Tamron – the SP 70-300mm F/4-5.6 Di VC USD but it’s pretty hard to find at the moment so I’ve been hunting around via Google.

Imagine my surprise when I started spotting Jessops ads for the EXACT lens I’ve been looking for embedded in the News24 website.

I’ve since seen these ads all over the place as I browse the web, and they are very cleverly targetted to the exact items that I’ve browsed via Google or on the Jessops website.

This is very clever stuff… everywhere I go I’m confronted by images and prices for the exact thing I want to buy right now, and it’s hard to get away from the urge to buy!

Anyone else seen good examples of this happening?