At 69.4 million blogs and nearly 30 billion posts to date, the rush of growth at blogging site Tumblr has for years had a seedy undercurrent: the popular site is home to a long tail of raunchy, NSFW adult content. But now, a few signs are pointing to the company cracking down on it, with the sudden deletion of several popular porn blogs within a short space of time.

Update: Tumbler says that… → Read More