despite impressive growth, Twitter’s universe is small. Estimates for the Twittering masses range between half a million and one million active users. Even if this undercounts the number of those who post their tweets through cell phones or other sites, Twitter is still pint-size…

Why Twitter Matters

The jury is still out, with me at least, on whether Twitter is just a super-sized echo chamber for the digerati or a tool that will eventually be as important to everyday folks as email or instant messenger. But this article raises the potentially important issue of reach versus relevence. Twitter’s pool of users might be small, but for those marketers to whom tha tpool is relevent, it’s importance may be hard to overstate. On the flipside, the chasm between the twitterati and the rest of us may never really be bridged.