Find on Wiki Name-s (including in page bodies) (cache list for super performance!). Find "like" pages (same first word or same last word). (Wiki NameNetwork)
query approach - make clusters/hierarchies of Wiki Name-s, query by intersection, at increasing level of detail (microsoft "and" crm, microsoft includes msoffice + mswindows + msoutlook....) - use XFML?
- weirder idea - there's already relations going in various directions. Maybe what you do is take any 2 nodes and do some sort of Network Flow (like Advogato) or Traveling Salesman path-generation to find various nodes along the path...
WebLog Category model (to provide specialized sub-blogs) - equivalent to Search view, but union of queries on clusters of Wiki Names...
Related: Sister Sites.