Programmers - Stack Exchange - Pentadactyl. Apple - Stack Exchange - Pentadactyl. Super User - Pentadactyl. Game Development - Stack Exchange - Pentadactyl. Pro Webmasters - Stack Exchange - Pentadactyl. Programming Puzzles & Code Golf - Stack Exchange - Pentadactyl. Unix and Linux - Stack Exchange - Pentadactyl. Server Fault - Pentadactyl. Stack Overflow - Pentadactyl. Hacker News - Pentadactyl.