Mark Russinovich and Bryce Cogswell have provided excellent tools and resources at Winternals and Sysinternals for many years. I'm delighted that Mark will become a technical fellow in the Platform and Services division of Microsoft.
I would have posted this entry last night had I been able to pull up the sysinternals blog - it's been reporting excessive traffic errors since the announcement. Finally I've been able to read Mark's post discussing their plans. Most important (for me) is Mark's commitment to continue engaging with the IT Pro community.
If you haven't come across SysInternals before then I strongly recommend browsing the site for both advice and killer security tools. Likewise if you're going to TechEd EMEA then catching any sessions by Mark should be a priority.