With regard to U2's One: The song is currently ranked as the 94th greatest song of all-time, as well as the fourth best song of 1991, by Acclaimed Music.[16]
I've seen Acclaimed Music cited on other songs/albums on Wikipedia too. I think that's how I originally found out about AM.
I found out about AM like that too. I've seen AM citations a lot lately. I even put some:
-Joanna Newsom's Ys
-Liz Phair's Exile In Guyville (Portuguese Version)
Now, i've seen a lot, and i wasn't the one who put it, like Belle & Sebastian - If You're Feeling Sinister
Even some articles, that are not related to music, include it:
-1992 In Music
-1993 In Music
The same way people like to reference Metacritic inside the reception section, sometimes when people create a section talking about accolades they reference AM.