According to data provided to eMarketer by Nielsen, traffic to Twitter.com was down a dramatic 27.8% between September and October 2009, falling to 18.9 million unique visitors. Nielsen is the latest in a list of research firms reporting declines at Twitter.com. comScore said unique visitors were down 8.1% in October, while Compete reported a 2.1% decline.
The big question: does this mean users are simply moving to third-party services (like the excellent HootSuite, which I use) and using mobile text more - or is Twitter declining as a platform? Related question: is Twitter hitting a wall as an early adopter/enthusiasts' platform vs. a wider consumer platform like Facebook?