I like the idea of subdomains (or a subfolder of a web site) where I can assign different name of subdomain for different purpose.
I start selling subdomain with allocated web disk space and bandwidth for fellow schizophrenics in another online community. They can request for certain software to be installed at their subdomains. A member “SzAdmin” may wants “szadmin.schizophrenia.com” installed with empty web store and shopping cart. A member “Treebeard” may wants “treebeard.schizophrenia.com” installed with photo gallery so that he can upload and manage his album online.