Guild Advancement

For small non-raiding guild, we can get Guild Experience Points (GEP) from the following:

• Dungeon boss kills
  Guild xp for boss kills is scaled on a few factors:
• Boss level, 
• Normal / Heroic, 
• Amount of guild members present - 4/5 - dungeons
• Arena victories - 
• Amount of guild members present - 2/2, 3/3, 5/5
• Questing - 
• Experienced is scaled to Character Level, 
• Daily Quest included
• An individual player's faction reputation advancement
• An individual player's profession progression
• Achievements

More info can be found here.