In order to keep your MOSS 2007 solution fast and scalable you should take the following guidelines at heart:http://technet2.microsoft.com/Office/en-us/library/6a13cd9f-4b44-40d6-85aa-c70a8e5c34fe1033.mspx?mfr=true If you look at the "Guidelines for acceptable performance" the first thing you should be aware of is that Microsoft makes a distinction between "web sites" and "sub sites". Where web sites are actually the first sub sites under a site collection, and sub sites are the sites under the web sites. The total number of web sites and sub sites together in one site collection should be 250.000. So if you've got less web sites, you can...