I just got back from a really crap trip to Beijing. I have been living in Shanghai for a year and visited Beijing before. This trip, I decided I wanted my boyfriend to see a bit of China. So he flew in from Australia. After a week in Shanghai, we went to Beijing.
We couldn't get our hands on a Lonely Planet Beijing 2008, cause due to the OGs, that book sold out about 4 years ago and it seems like they have no plans on replacing it. So we were stuck the the Insider's Guide to Beijing 2008.

THIS IS THE WORST, crappiest, most out-of-date guide I have ever seen. Perhaps the writers cannot be blamed due to the speed of which Beijing has changed in the past year. For example, in our search to find a Beijing duck restaurant in the guide, we ended up on two different occasions in parking lots. The restaurants no longer existed. On a number of occasions, we were lead to believe we were going to cool art districts, or hutongs, which turned out to no longer exist. It was such a frustrating trip, that by the end of it, my boyfriend didn't even want to go for a visit to the Great Wall. Beijing won!

So a word of warning, don't expect guide books to be able to keep up with Beijing. My advice is, don't trust the guidebook and start asking around..