Twitter blog and book

This is a great blog on how to use Twitter:

http://twitterhandbook.com/blog/

The book twitter revolution from Warren Whitlock and Deborah Micek ist also great.
The book was actually my starting point to find this blog.
The book is a very comprehensive start into Twitter and its many applications to the private and business context. It is also an interesting read, as it was partially produced with Twitter collected content.

You find the book at: http://www.amazon.com/Twitter-Revolution-Marketing-Changing-Business/dp/1934275077

Very inspiring scocial media tool and definitely far beyond from being only a toy for freaks.
There are a lot of smarties on twitter. Be on it now - I will be shortly.