Adrianne Jeffries in This Is Why Your Tumblr’s Down. As iamdanw comments:
9? That’s it? They must be very sleep deprived
… and that’s now. It was even fewer in December.
Paul Mison's random stuff that doesn't go elsewhere. Is it microblogging, or microactivity?
(Previously known as 'tumblr is my sock drawer', for reasons that are somewhat unclear.)