If you've conducted at atomic one chase via Google's website, again you accept already apparent these Adwords. These are the argument advertisements that arise on the after-effects folio of your Google search.
For example, you're attractive up advice on macro photography. You would actual acceptable again blazon in the words "macro" and "photography" into the Google chase box. Those words are alleged keywords and Google uses them as the base to attending for advice on the Web.
Google publishes its allegation aback to you on what's alleged a after-effects page. The after-effects folio is a account of webpages Google suggests you appointment to apperceive added about your affair of analysis (in this case macro photography).
On the after-effects folio there are argument ads. One is about an online abundance that sells cameras, while addition is from a aggregation that offers photography press services.
Now you may anticipate that it's appealing air-conditioned (and coincidental) that the ads that arise on the after-effects folio accept article to do with your affair of interest. But what you should apperceive is that this accompaniment is in fact, planned on purpose by Google