Right Media

Right Media are relatively new to the online advertising game, although have emerged with an impressive ad serving solution, and offering competitive rates, especially for US traffic on most creative sizes.

Joetec

Joetec is a decent second tier network, as they fill 100% of your impressions for most ad units, and have good reporting and excellent support.

Copernic Media

Copernic Media (formerly Mamma Media) have been around for a long time in the online advertising world, and have emerged as a decent second tier network filling most of your unsold inventory at reasonable rates.

Canep Media

Canep Media are a new network offering publishers a pure CPM option to fill their inventory of all the most common IAB ad formats using the AdECN advertising exchange.