Anyone who reads this blog regularly will know that I keep a close eye on what the Microsoft UK IT professional technical evangelist team is up to and John Howard’s blog is one of many that I tend to watch. Since August, John has been posting a series of infrastructure essentials blogcasts to help administrators set up a well-managed infrastructure using Active Directory along with common Microsoft products like ISA Server 2004 and Exchange Server 2003. At the time of writing, John has reached 25 infrastructure essentials blog casts – watch out for more. John covers Windows (client and server), Virtual Server, Virtual PC and Identity Integration Server but it’s also worth checking out are Steve Lamb’s blog (security) and Eileen Brown’s blog (management, messaging, mobility and real time collaboration).