The wmfilter module for Drupal allows the use of syntax such as [google:omarzblog] to create links like: [google:omarzblog].
Or [dictionary:syntax] to look up the definition of [Dictionary:syntax]
Moreover, there are tons of other wiki based sites that have already been mapped out there (Interwiki Map). For the hell of it, I decide to try out all of them by using a simple text editor to create these 166 (mostly useless) links to search for "omarzblog"...
... on AbbeNormal >> [AbbeNormal:omarzblog]