I highly recommend using a program called >Ghostery.com". It shows everyone/everything that is tracking you and lets you choose which one or all to block. It's amazing sometimes how many websites want to track you, unless you see them all you are rarely aware. This forum has zero, which is a rarity. Here is an excerpt from the ghostery home page:
The largest tracker database on the internet, constantly growing
Ghostery has the largest tracker database available on the web. We meticulously select, profile and cull over 1,900 trackers and 2,200 tracking patterns.
TRACKERS
Block how you want, when you want
With Ghostery, you get to choose whether you want to block tracker by tracker, site-by-site, or a mixture of the two. Pause blocking for those moments when you’d like to disable it altogether.
Jim
96 x 60 PRSalpha, 5HP Colombo spindle, Custom indexer, Custom vacuum table, Custom Fire Extinguishing System