I'm looking for sites about SharePoint (MOSS 2007) that are trusted, where the writers have actually deployed large sites. Essentially, the Joel Spolsky of SharePoint.
Joel Oleson was the original MS SharePoint Admin. He currently works at Quest. He worked on MS's SharePoint farms, which as you can imagine were MASSIVE.
Ben Curry co wrote the MOSS 2007 Best Practices book (which is great) with Bill English.
Brian is right... Joel Oleson is THE definitive source (his original TechNet blog is here and has some of the best SharePoint posts): http://blogs.msdn.com/joelo/
A few more of my favorites: