If there was any doubt about the power of video ads online, well this report from eMarketer should dispel them quickly.

If you have any lingering doubt that online advertising in the form of video is seeing explosive growth, consider this: Spending on online video advertising will reach $410 million this year, 82% more than was spent in 2005. By 2010, Internet video advertising will be a $3 billion business, according to eMarketer's latest projections.

There is a caveat that this is still a small piece of the pie, but given how powerful video is for advertising (e.g. TV), as broadband connections get faster, this part of ad market can only grow.

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