But are there really a lot of pageviews? Not from the site owners'point of view. On my Tumblr, I've had posts that get thousands of "likes" and reblogs, yet the Google Analytics counter reads maybe a 100 pageviews in that time period. This is of course because my posts were engaged by users on the dashboard.

The upshot of the dashboard dynamic is that users, at least in my case, dont have much of an incentive to create beautiful permanent sites...just like i dont generally care what my Twitter profile page looks like. The dashboard dynamic also affects the content I put out...I haven't done a scientific analysis, but I would wager that my vertically oriented photos are almost always "liked" more than my landscape-oriented photos...not because they are better, but because vertical photos dominate the dashboard screen area.

And so unless the dashboard is a gold mine of ad revenue, it's hard to see how this will improve Yahoo's bottom line without some extremely clever engineering and design...but not only that, Tumblr's social interaction model is not as addictive as it is on Twitter and Gacebook...less interactions means less data.

This isn't a knock on the Tumblr team...I would love it if they're able to continue the service with a big pocketed owner...the service really changed the way I think about blogging and content workflow...so props to them for making a beloved product