A new Forrester report (as discussed on NewTeeVee) forecasts online video advertising spending in the U.S. will reach $7.1 billion in 2012, an incredible 72% CAGR for the next 5 years!

NewTeeVee adds: “Forrester analyst Shar VanBoskirk praised the emergence of “customer-centric” ad formats like the overlays used by VideoEgg, YouTube and others, which, rather than forcing an ad in their video streams, allow viewers to decide if and when to pause a video to watch an ad.”

That same report indicates that “spending on social media (…) will grow to $6.9 billion as marketers understand how to use and measure this channel.”

What it means: every time I see reports forecasting the enormous growth of online video ads, I get the feeling that this growth will be mostly driven by the desire of current TV ecosystem stakeholders (networks, media placement firms and advertising agencies) to replicate the existing TV business model. I’m not totally convinced consumers will be well served by that new medium unless precise targeting technologies are developed. Nonetheless, I definitely expect that the two darlings of online advertising in the next five years will be online video ads and social media advertising.