Likes

From what I’ve seen over the past few days, when one of Tumblr’s founders mark on one of your posts that they “Like” it, it seems to be a way of bookmarking your post for later discussion or reblogging.

Likes will probably be rolled out in the next month or two as they get all of the odds and ends straightened out but for now, Likes seem to be a simple bookmarking tool for Tumblr.