I'm certainly no expert on TV advertising, but it seems to be a much harder market to break into than the web. The cost of producing ads is much higher, and th

I'm certainly no expert on TV advertising, but it seems to be a much harder market to break into than the web. The cost of producing ads is much higher, and the ROI is harder to measure. And there are big, established players who have the infrastructure & relationships that Google doesn't yet. Plus, Microsoft has had MSNBC for years, and it doesn't seem to have helped them in TV advertising.