Adware and Spyware might be the two most frightening developments in technology yet.  Worse than viruses, which are obvious and easy to spot.  Adware infects your machine and subtly releases pop up ads designed to look like they are coming from the Website you happen to be surfing.

So they're influencing your behavior against your will, without you knowing it.  Manchurianized. 

Here's a link to remove adware and spyware off your Windows machine:  Away, ye demons of pop up ads!

Careful, this software is still in beta with Microsoft.