[ComputerGuy]

Your IP address can be used to locate you, sometimes to within a few tens of miles. It looks like you're receiving targeted advertising, that's all.
When you make a request for a web page, your IP address goes with it. I wouldn't be worried about it - it's usually just a nuisance thing.
My new smart phone is basically an advertising platform, btw. I get targeted advertising all day, every day.
Cookies are separate issue. Most cookies are of the harmless 'session' variety. Others are called tracking cookies because they log and report which web sites you visit. Since I surf the web in full-blown paranoia mode, I monitor my cookies. Anything that I don't recognize as a session cookie gets whacked.

[nathanbedford]

Thanks to both of you.