ICANN is Accepting Suggestions for new TLDs (for $227k) - what would you pick?
(www.theregister.com)
Actually, you’re on to something there; have the TLD represent the license agreement to access ANYTHING served over it.
.gpl .lgpl .agpl .mpl .mit .bsd .apache .epl .cddl .cc0 .ccby .ccbysa .ccbynd .ccbync .ccbyncsa .ccbyncnd