I don’t consider myself a fan of Seth Godin, but I have enjoyed many of his books. When I saw a video of him talking at TED Talks recently, I decided to order Tribes. The truth is that the book was more than adequately summarized by the speech he gave @ TED.
Beyond that, I cannot help but agree with the reviewers that point out the lack of substance in this work by Godin… By the end of the book, you are inevitably left wondering why did he need to publish an entire book about it. There’s really indeed an unfortunate lack of substance in Tribes.
Instead, I recommend The Dip: A Little Book That Teaches You When to Quit (and When to Stick) and Purple Cow: Transform Your Business by Being Remarkable.