An online advertising network or ad network is a company that connects advertisers to websites that want to host advertisements. The key function of an ad network is an aggregation of ad supply from publishers and matching it with advertiser's demand.

What is Adsense?

Google AdSense is a flexible, hassle-free way to earn revenue by showing relevant and engaging ads alongside your online content. You can easily show AdSense ads on your website, mobile sites, and site search results. This advertising service provides text, display, rich media, and more.

You should also learn about other advertising networks.  Some of which are potentially BETTER than Adsense for your website.  It is hard to say which ad network is the best option for your company.

Media.net - Tap into ever-increasing native budgets with Media.net's native ads. They are completely customized to the look and feel of your pages for higher user engagement. You also have the option to drive your audience to contextually relevant articles on your site through the native unit.

AdMedia

Infolinks

Oath - Oath Ad Platforms combines the best assets from BrightRoll, ONE by AOL and Yahoo Gemini to support the way you want to do business, and make it easier for you to deliver on your goals.

Conversant (ValueClick Media)

Vibrant Media

Exponential

Sitescout by Centro

Revenue Hits

AdBlade

Undertone

Media Nexus

PropellerAds Media

BlogAds

Airpush

Inmobi

Leadbolt

Ad Recover

Epom

You may also want to learn about other advertising options here on Apparel Search.