I posted a summary from home last night, but I haven't seen it come through yet so I'm reposting this slightly revised edition. Thanks to everyone that responded to my query about mailing lists on data center design. It turns out that there is already a list dedicated to this purpose: send a message to majordomo@shorty.com with "subscribe datacenter" in the body. There is a companion mailing list hosted on the same server called "dce" that is for trading and/or selling used data center equipment. Thanks to Robbie Honerkamp for running these lists and pointing them out to me. Thanks also to the kind folks that offered resources to run a mailing list. Jeff