It can seem like Google adds a new official blog every week, which is a pain if you want to keep up with the official statements. Who wants to manually subscribe to each one? Well, you don't have to. Google tells me there's a feed they generate out of Google Reader that you can try here. An OPML file that shows all the blogs that are part of that combined feed can be found here. Unfortunately, you still can't go to a single page from Google itself and read all the latest posts from the various Google blogs. That may come, the company told me, but for now the feed and OPML files are all that's made available. Don't get me wrong, though -- I love having them!
Postscript: Google tells me there is a single page with all the posts you can read here.