SpotXchange CEO Mike Shehan explains that his company has focused on building a real-time auction model for publishers to offer inventory and advertisers/agencies to bid on it. The 2 main verticals SpotXchange is pursuing are local and casual games. Providing an easy on-ramp to video advertising is the key goal. Advertisers can load their campaigns, enter the marketplace, target by channel and/or region and determine how much they're willing to pay.

Though it's a fully self-service model, SpotXchange offers client service model as well for larger brand advertisers. Michael says there are now 300 publishers in the networks, reaching 50 million unique visitors per month. The company grew out of Booyah Networks, a search and interactive agency which has fully-funded its development.

Meanwhile, Jayant Kadambi, CEO of YuMe explains that the company spent the first 2 1/2 years from its founding in October '04 developing an ad-management platform that could handle various ad units and formats. In the absence of standards, Jayant believes this gives the company an edge in servicing advertisers and agencies that don't want to customize assets for various publisher sites' players. YuMe has built a network of 400+ publishers with 46 million uniques/month and a sweet spot of 750K-1 million video views/month and above (for a network total 150 million streams/mo).

Jayant says he's been pleasantly surprised at how much video content is monetizable, though he's not suggesting user-generated video will be monetized any time soon. YuMe's CPMs are in the $10-30 range. The company is now in the mode of building scale, which could involve marrying its ad management platform to others' networks using its "Adaptive Campaign Engine." In fact, one recent partnership that was announced to do this was with SpotXchange. YuMe has raised $16M from investors including Khosla Ventures, Accel Partners, BV Capital and DAG Ventures.

I'll have more on other video ad networks and how they fit into the larger broadband industry in the coming weeks.