A comment on Twitter 280, and a correction on Uber in London. Then, why blogs are better than books (in some cases), and a whole list of aggregators not covered in Defining Aggregators.
Facebook Marketplace and Craigslist, Marketplace Potential, What is Facebook?
Facebook launched Marketplace, which is fairly described as a Craigslist competitor. The potential, though, is greater; what is even more interesting is what this says about Facebook’s perception of itself.