The team behind Windows Essential Business Server 2008 for midsized companies (part of the newly announced Windows Essential Server Solutions family and formerly known as "Centro") has launched a team blog here.  Group Program Manager Eric Watson provides the introduction:

In this Blog, key people that design and develop the product will discuss all of those features, the software, tips and tricks, and yes, even shortfalls that we hear from customers. As engineers, we love details, and with 5 products and 15 workloads plus all the ‘can’t get it anywhere else’ software we added, there are plenty of details to talk about.

The Essential Business Server web site is here.  A Q&A about the product is here.

Joel Sider