Here. "The CLR Profiler includes a number of very useful views of the allocation profile, including a histogram of allocated types, allocation and call graphs, a time line showing GCs of various generations and the resulting state of the managed heap after those collections, and a call tree showing per-method allocations and assembly loads."

Here. My favorite bit: "Certainly we believe in this next wave, and we're not just saying that, we're showing with our investment level how sincere we are about that. Over the last four years Microsoft's R&D budget has more than doubled, and that budget is focused on the things you're going to hear about today. It's focused on making 'Longhorn' real, and all the milestones that get us to that point."

Here. "Chris Sells kicks off his inaugural installment of the Longhorn Foghorn column by defining the pillars of 'Longhorn,' the next generation of the Windows operating system, and providing an overview of each pillar."

Here. DevelopMentor launches their Longhorn mailing list.

Here. Lots of details from PC Magazine on Longhorn.

Here. If you haven't seen it yet, or weren't able to get the CDs from the PDC, you'll want to check out the online Longhorn SDK. Even if you do have the offline LHSDK, you'll want to check out the online version, as it includes experimental support for MSDN Annotations, which lets readers comment on each page.

Here. "If Microsoft succeeds with even a portion of the ambitions expressed, Longhorn will be more secure and reliable by orders of magnitude over all previous versions of Windows." I sure hope we succeed, then. : )

Here. Don Kiely provides a brief overview of the pillars of Longhorn.