Reuting's book is a decent introduction to starting and operating an LLC. After reading it, expect that you will either have to 1) hire professionals to help plan your LLC, or 2) do a bunch of online research to supplement the book. This isn't really a criticism of the book itself... I just think it's important to set reader expectations. This book will give you a starting point; you WILL have to do more work to establish your LLC.
It's hard for a book to stay on top of all of the state laws and regulations. Like a lot of books, it proposes to fill the gap with online content. Practically speaking, this isn't a practical alternative unless the book is a huge best seller... an author just can't justify the time to keep all that information up to date. In this case, there are a several online articles, and coverage of a few states in the key topic areas.
LLCs for Dummies would benefit from more detailed coverage of operating agreements, worksheets to help readers actually plan and run their LLC, and (especially) references to external business resources that will be kept up to date for key topics. (examples include the SBA and IRS at the federal level)