Google AdSense is a program run by Google through which website publishers in the Google Network of content sites serve text, images, video, or interactive media advertisements that are targeted to the site content and audience. These advertisements are administered, sorted, and maintained by Google. Wikipedia
2 million people have chosen AdSense, here’s why:
Earn money from your site
Millions of advertisers compete for your ad space. That means more money, more relevant ads, and more ad spaces filled.
Ads optimized for mobile
Google can optimize the size of your ad units to automatically fit desktop or mobile, meaning there’s more chance they’ll be seen and clicked.
Add one piece of code to your site and Google will automatically show ads tailored to your site’s layout, saving you time making changes to ad code.
Only the highest paying ads go live
Boost your revenue by tapping into the largest network of online advertisers who bid for your ad space.
The right ads for your audience
Ads are screened to ensure they’re high quality and relevant to your content or audience, even when viewed on smartphones and tablets. The result? You can make more money online.
You’re in control
Block ads you don’t like, customize where ads appear, and choose which types fit your site best.
You just need 3 things to get started with AdSense:
A Google Account
If you’re using Gmail or any other Google service, you already have one. If not, just click to sign up and we’ll help you create your new account. It gets you into AdSense and everything Google.
Phone number and postal address
Your phone number and the mailing address associated with your bank account, so you can get paid easily.
Connect your site to AdSense
Add one piece of code to your site and Google will take care of the rest, allowing you to grow your business.
To view your potential earnings, see your category for your site and a region for your site’s visitors.
Source: Google AdSense