I know a lot of people really like this book. I thought it was okay. It's a great book to read if you're clueless about social media. Trust Agents builds a great case for the value of using social media to improve your brand and it does a great job of teaching social media etiquette. However, if you're very savvy when it comes to social media, you might feel like you're not getting much new info here. I found some great principles here, especially when it came to web etiquette, but I found myself skimming a lot. If you don't know, read it. If you're experienced, maybe read it.
By the way, when it comes to Living Hope Church using social media: we have a Twitter account, and Facebook fan page, a YouTube channel, church website, a church blog, women's ministry blog, and my blog. I will say that it can be daunting keeping up with all of this, but I feel they are all valuable tools. If you're a Living Hoper and you're crazy about social media, let me know because I would love to have your help keeping all our social media accounts current and interesting!