When Slashdot first appeared and started getting some attention, we had a deluge of “First Post”-nerds.
Their sole objective in life would seem to be the first one to post a comment on each story appearing on Slash.
Now fast forward to 2005 and we start a new game: First link.
If you are the first link on a Wikipedia node, in the External links section, you are a “First link” person :).
The next step is to create a “First Link Number”. I’m a 2.