Google Ads' system is based partly on cookies and partly on keywords determined by advertisers. Google uses these characteristics to place advertising copy on pages where they think it might be relevant. For example, if you sell shoes online, you might bid on keywords like "Nike sneakers" and "penny loafers." http://twitter-sponsorlu-reklaml86429.pointblog.net/google-al-veri-reklamlar-Hakk-nda-Ger-ekler-A-a-29891935