Targeted advertising and web traffic tracking are nothing new, but a recent report on Wired about Verizon's unique logging when you visit any website sure is disturbing. It might not just be Verizon, either, but other mobile carriers.
Wired explains that Verizon creates a unique identifier (UIDH) for you that's posted to every web site you visit, which could be used by advertisers and other companies to track your activity online. There's no way to turn it off.
Not all phones do this, and although AT&T is also reportedly using a similar type of identifier for advertising purposes, not all carriers might be using this privacy-invasive tool.
Head to http://lessonslearned.org/sniff from your mobile device to see if AT&T, Verizon, Sprint, Bell Canada, or Vodacom are sending tracking beacons for every site your visit or app you use.