What Do You Do if You're Tumblr and You Just Got $25 Million+?

If you owned Tumblr, what would you do with the $25 to $30 million you just got pumped into your company (on top of the first $10 million)? (Or thereabouts — numbers are reportedly fuzzy.) I have a real soft spot for Tumblr, I think it’s adorable and effective and groovy and small. What do you do to keep those charms while making it robust and, oh right, revenue-ey?