As I mentioned earlier, there are many networks in the video space. The big guns you need to be talking to include Tremor and Broadband Enterprises. But you can also access network video inventory via such networks as The Fifth Network, Brightcove (though they have just announced that Tremor will be primarily selling their network inventory), Advertising.com and many more.

When talking to any ad network partner, ask what video inventory they have access to. As we all know, things in the online space change daily and you never know what new opportunities you might uncover.

But all video networks are certainly not created equal, including their size, their relationships with the publishers, and their product offering. The larger players in the video space are Google and Broadband Enterprises in terms of their reach of video impressions. But you need to understand the nature of the content that you are associating with your brand. You must decide between user-generated and professional content. Brand sensitivities, goals and objectives will lead you down one path or another. Most ad networks operate with video inventory in professional content. But do ask, or you might get surprised down the road.

Either way, the video networks have the ability to quickly execute a video campaign across many sites, allowing you to track both video and the companion banners for impressions, clicks, interaction rates, et cetera.

The fortunate thing with most of these players is the ability to target by many variables including content topic (of the video), geography, behavioral measures and many more. So you have the targeting ability of banners, with the rich media experience of video. Using technology vendors such as Scanscout and Avant , publishers (and networks) are able to get to this granular level of content targeting to better associate advertising with relevant content.