Twitter

This article , written by Eric Qualman, has two focuses: the effectiveness of twitter and its inevitable downfall. For each focus Qualman lists several valid points. My favorite line in the article is "Twitter is free. If a local plumber has 1,500 followers, even if it's likely most of them aren't listening at any given moment, as long as at least one person is, that's all that matters." This shows that twitter basically follows the same principals as email spam, but on a followers only basis.

this article

Now for a quick commercial break that is completely wrong and about twitter.