What Is Google Adsense & How Does It Work?

What is Google Adsense?
Google Adsense is
a CPC (cost-per-
click) advertising program
that allows publishers
(anyone wanting to put ads on their
websites) to insert a small amount of
HTML into their sites and have ads
appear that are targeted and relevant to
the content of the site.

So what exactly is Google
Adsense?
The good news is that Adsense is about the
easiest way for bloggers or webmasters to
start making money with their sites. After
installing the ad code in your site, the Adsense
spiders will crawl your site to see what all your
pages are about.
They then check their inventory of ads and put
related ads next to each of your articles. This
works out well for everyone as someone
reading an article on gardening is much more
likely to buy gardening tools than someone
who is reading an article about car tires.

How does Adsense Work (for
publishers)?
So, how does Adsense work? It starts with the
advertisers who choose which keywords they
would like to advertise on. Let’s suppose I
want to advertise my new line of gardening
tools that I just created. I would bid on certain
keywords like “gardening, gardening tools,
tillers, pulling weeds, etc”
The Adsense spiders would then match my ads
up with :
1. Those specific keywords that
people type into Google and
display them to the top and
right of the search results
2. Websites (like yours) that
display adsense ads.
The adsense folks will send out Robots to
crawl your site to see what all your content is
about. If they find that you have content that
has some of the same keywords that I (as the
advertiser bid for) then my ads will show up on
your site next to your article about gardening
tools.
For more about how Adsense works check out
Google’s help page