Blogwars
David D. Perlmutter
Oxford University Press
I have written on the internet for years.  This is a good and accurate look at the blog world.  The book is not partizant and does not favor any political side.  As a blogger I found the book so what.  But I did see what I write as a hobby this book accuralty reflects what you can expect to get into when you share your opinions.  It is a rough and tuble world out there.  

It is a mean place the blog world and it takes a great deal of time.  

Perllmuter also goes into the history cause and effect of different events and campaigns that involved blogs.  He also ties blogs to past forms of comunication back to depictions of the Battle Keddish.

If you blog you will find this booring but it is a great world if you are not fimilliar with blogging.  The book goes into how bloggers got both Dan Rather and Trent Lott when they steped out o f bounds.  The blogs have power.  It is no one individual but how stories take a life of their own.  Not that all internet traffic is spontainious much of it is contrived by some proment opinion holders.  

Still if it is a good book if you are interested in politics or comunication.  I would say that Blog Wars is a good first start to look at define and explain the political blogging universe.