Most web pages that you view nowadays contain one or more (often many, many
more) tricks and techniques that allow the operator of the web site to
monitor your usage of that site. This is often done purely for marketing and
advertising reasons . For example, a typical web page might contain multiple
adverts, each of which has a unique ID number attached to the image so that,
if you click the advert, the advertiser knows who clicked it. Click a similar
advert on a different site entirely, and those 2 clicks can be linked in
order to identify you as an interested potential purchaser. If you're
concerned about such things, and would like to protect your privacy when
you're surfing try this free utility. It's available as an add-on for all the
major web browsers and it works a treat.
http://www.techsupportalert.com/content/view-and-block-trackers-bugs-and-other-web-usage-monitors.htm
