Jump To Guild lets you see where your guildmates are gathered and join them there. For example: members of a RP guild can use /portal as soon as they log in to make sure they're near others and not stuck in an empty city.
/hubs # where # is the guild number, defaults to 1
Lists the current active zones for your guild, with a player count for each.
/portal # where # is the guild number, defaults to 1
Jumps you immediately to your guild's most active zone. All portal users will arrive in the same instance; no need to coordinate.
The portal feature works by choosing the most populated zone, finding the highest ranking guild member already on location (with veterancy as a tiebreaker), and selecting them as the jump-to-player target. This makes sure multiple people using /portal at the same time don't end up on different phases.
By default, Jump To Guild will filter out places with fewer than 3 people. Changing this is a one-line edit to the Hubs.lua file.
Useful addon, but runs into an issue when the highest population is in Cyrodiil. Is there a way to narrow it down to a specific zone? Say /portal 2 Glenumbra, sending you to the biggest phase your second guild has in Glenumbra?