Judging by Google popularity, the word "tumblr" will be a more common search term than "blog" before the end of the year. Welcome to the future, where the majority of websites sound like band names.
Just as blogging has become recognised by the mass media as, like, a real and (occasionally) serious thing, up surges Tumblr to make the internet funny again. Sure, you may struggle take the tumblverse seriously -- but then, isn't that the whole point? [xkcd]