Google Adsense Advertising Network

Ranking: 1

Google adsense program is the best in the lot. Publishers generally prefer google adsense because of better CPC(Cost Per Click), compared to other ad networks.

From Google AdSense:

Google AdSense provides a free, flexible way to earn money from your websites, mobile sites, and site search results with relevant and engaging ads. AdSense has helped over two million partners grow their businesses in the last 10 years. Have AdSense fund your content so you can focus on creating even more.

Revenue Share:
Revenue share of google adsense will be,
50% Publisher
40% Ad Network

Registration Link: https://www.google.com/adsense/signup