Read this article from Noobpreneur.

“Maybe you have read this a thousand times, but I would like to encourage you once again. You. Have. To. Use. Twitter. Period.

What is Twitter, anyway? In essence, Twitter is a social networking and micro-blogging site that allow you to connect and interact with fellow users easily – in real time and in 140 characters – basically answering this question: “What are you doing?”

Twitter is the fastest growing social networking site on the Net today (Goodbye Facebook!), with 1,382 per cent year-on-year growth, compared to Facebook’s “mere” 228 per cent year-on-year growth.”