Expand your guild's mine.
Add a personal enhancement at the tavern that increases the chance of finding magic items.
Craft schematics to manufacture banners that offer allies swiftness for 20 seconds.
Allow guild members with the proper permissions to claim a supply camp for the guild, allowing it to gain access to upgrades over time.
Add a personal enhancement at the tavern that increases the rate of WXP gain.
Set up a temporary structure in your guild hall while construction begins on your guild hall's arena.
Produce aetherium at a faster rate.
Add a guild armorer to the market, from whom basic guild armor skins can be purchased.
Add a guild weaponsmith to the market, selling a selection of guild weapon skins.
Add silver as a possible output from the workshop's ore synthesizer.
Visit the minstrel at the tavern to change the background music of your guild hall to a selection of themes based on the capitols of Tyria's major nations.
Unlock a weekly mission slot that will only generate WvW missions and is unaffected by the guild's mission preference.