3. Tagging aliases with semantics by using substrings. So say you wanted 22k.io to send you an email when your nxt account received funds, create an alias in your account starting with the "22knotify" in it like "22knotify2014yeehaw" with a "mailto" URI. (NOT IMPLEMENTED - yet!)

All of these would require a new URI scheme for each format so a parser could handle it.

Fun!