Blizzard has recently unlocked Garrison Campaign quests, so if you're level 100 you should be on the lookout for a new quest somewhere in your garrison. What are Garrison Campaigns? They're weekly quest chains that give you some cool rewards. There will also be a bonus objective you can complete while you're doing the quest for 800 Apexis Crystals (in addition to 800 from the regular daily).
What quest you get appears to be entirely random. For example, this week I had Garrison Campaign: The Ring of Blood and my warrior friend, Mr. Rossi had Garrison Campaign: Seismic Matters. My reward for completing the Ring of Blood campaign quest was a new title, "Blood Champion." The final reward from the latter quest is a mole machine outside your garrison that will transport you instantly to your outpost in Gorgrond. Other quest rewards include things like Pile of Blackfuse Shredder Scrap or Sargerei Disguise. There's also an achievement tied into completing all of them, which looks like it will take 3 months assuming you complete one of them every week.
Filed under: Warlords of Draenor