Links, which have their own link info, are fixed in their position,
because I would hate to change the "Previous" and "Next" links all the time.
So therefore they are ordered after anciennity, i. e., what I linked first,
is placed further up I've ordered those links alphabetically at one point, but as of July 2008,
they will not change position anymore, except, if there are major changes in colour codes, which was the case in June 2008.
When the page belongs to a friend, then he or she comes before the other links,
and the links is accentuated in some way to mark the difference.
TL;DR:
Age before beauty since 2008. Before that, alphabet. Friends have special mark.