It’s not only about Twitter for Bit.ly traffic source 🙂 One link created with Bit.ly might have several lives, in fact 🙂
Lately there’s been a lot of discussion of the relevance of referrers as a way of discovering the source of traffic to a site. At bitly, we see billions of clicks per month on across multiple platforms, instant messages, emails and mobile text messages. This gives us a unique window onto the way people share social objects, and we see how they propagate through human networks and across the various social networks.