The perpetual challenge with any printed, physical book on brand new technologies or paradigms is that they get outdated. Fast. And in the case of social media, the very immaturity of the discipline adds even more pace to its progress. So yes, of course this book is outdated, but enough not to consider buying it?
Well, frankly that all depends on how up to speed YOU are.
If you are a bleeding edge purveyor of social media and PR - or a voracious student - there is nothing here that will rock your world. And you will have likely read it free on the internet anyway.
But if you are new to these fields and want an easy, analog way to dip your toes in the water (and not look like an idiot in front of the average 21 year old marketeer) then this is worth buying.
The shelves are littered with similar works, but many are full of jargon and badly written. This is neither, and while it's pretty Americanised, frankly, isn't the social web?