• [+] Wikipedians by access to a digital library (4 C)

A

• [+] Wikipedians who contribute to Advogato (12 P)

D

• [+] Wikipedians who contribute to Distributed Proofreaders (54 P)

E

• [+] Wikipedians who contribute to Encyclopaedia Metallum (49 P)

F

• [+] Wikipedians who contribute to Flags of the World (18 P)

I

• [+] Wikipedians who contribute to Intellipedia (5 P)

L

• [+] Wikipedians who contribute to Link Everything Online (8 P)
• [+] Wikipedians who contribute to LyricWiki (22 P)

M

• [+] Wikipedians who contribute to Memory Alpha (3 P)
• [+] Wikipedians who contribute to Memory Gamma (2 P)
• [+] Wikipedians who contribute to MusicBrainz (61 P)

O

• [+] Wikipedians who contribute to the Open Directory Project (31 P)

O cont.

• [+] Wikipedians who contribute to OpenStreetMap (44 P)

R

• [+] RationalWikians (2 P)

W

• [+] Wikipedians who contribute to WikiWikiWeb (4 P)
• [+] Wikipedians who contribute to the Club Penguin Wiki (7 P)
• [+] Wikipedians who contribute to Wookieepedia (41 P)