pageoneresults - 8:17 pm on Nov 22, 2006 (gmt 0)

Taxonomy. Architecture. Foundation.

Be sure you have the foundation to support such a large undertaking. Lots of solid planning now will minimize the number of changes you have to make a year or two from now to accommodate growth.

Check, double check and triple check your work. Especially in a rewrite environment. Make sure the proper server headers are being returned at each step of the way. Hack your way through the URI string and just triple check all of that.

Create category index pages that act more like site maps. Keep those pages well linked to. If you were to draw your site out on a white board, what paths does the spider take to get to the content? Make sure you provide both horizontal, vertical and diagonal link paths. ;)