We very quickly discovered thousands upon thousands of these blogs on Tumblr that we had no idea were there and were really creating some very cool stuff.

FORBES: David Karp on Tumblr's Growth, Monetization and Future Plans

We very quickly started to find a lot of very cool people doing some very cool stuff with Tumblr and we very quickly realized that we have no good way to find all of it.

FORBES: David Karp on Tumblr's Growth, Monetization and Future Plans

Once you get used to it, the new stuff is extremely cool and very useful.

FORBES: Age of Context Draft Introduction