Some kind of ads is showing on stackexchange.com also.. Which company is providing is it google. or is it affecting me only...
closed as not a real question by Su', toomanyairmiles, DisgruntledGoat, danlefree Sep 11 '12 at 17:14
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I'm getting the feeling you may have some sort of AdWare installed on your computer. This is almost certainly true if the ads show on every site you visit. I just visited the Starbucks website that you had in your screenshot, and I didn't get any ads at all.
I suggest running some type on anti-virus/anti-malware scan on your computer.
Malwarebytes Anti-Malware is a good program to use. You can find the free version here: http://www.malwarebytes.org/products/malwarebytes_free