However, One user is allowed to own only one Adsense account in a lifetime. But if you are running a website in partnership, you may use two Adsense account to display adds from two Adsense account.
The most common case of putting two or more Adsense accounts on the same website comes up when you are running a site in partnership. This partnership could be in the form of guest posts with the external author holding his own approved Adsense account.
Google Adsense, a program initially released on June 18, 2003, is a web-based application which let publishers serve to add on their web content in form of text, images, banners, and other interactive media. All the advertising contents are maintained and sorted by Google itself. Publisher generates their revenue on a per-click basis or per impression. Now 14.3 million websites are the active user of the Google Adsense program.

Google itself operates Google Adsense technology to serve advertisements based on website content, the user’s geographical location, and other factors. Adsense is one of the popular programs to monetize the web content on the Internet. Several websites use Adsense program to monetize their web contents(website, online videos, online audio content, etc.) to generate income.
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