The Post takes a look at how news travels across Twitter in this Howard Kurtz piece.

Twitter’s 17 million monthly visitors — up from just over 1 million a year ago — are shaping their environment, such as making discussions easily searchable by including the hashtag or pound (#) symbol. They create an echo-chamber effect by “re-tweeting” — that is, repeating — noteworthy observations or links. But as with Facebook, whose redesigned news feed now resembles Twitter, the ultimate appeal is forging connections. USA Today last week lamented the sheer banality of most status updates, but even these provide a sense of someone’s routine, interests and sense of humor.