I'm creating a customer portal and I intend to create a separate site
for each customer. My plan is to create a custom site definition based
on STS to use for each of these sites. I need to store the customer name
(or id) on the site so that custom web parts can filter information for
that specific customer by looking at the "Customer Property" of the
site. What's the best way to create a custom property for a site? I'm
open to using a feature as well.