The Spires of Xin-Shalast
I've started running the final chapter of my Rise of the Runelords campaign, Spires of Xin-Shalast. As part of this, I've started a GM's commentary on the campaign over on my NotASnark blog. It won't contain spoilers for what's coming, but will contain information about plot points that have happened so far.
This campaign will take the characters up to 17th level, which is the highest we've been so far in Pathfinder. I've got ideas though for how to take things beyond this if the players want to continue on to higher levels.
Also on that blog are player accounts of Serpent's Skull and Strange Aeons campaigns, along with everything else I play (such as Delta Green).