http://yenpress.com/digital/
Sword Art Online, Sword Art Online Progressive, Accel World, Log Horizon, and Yahari as well.
Gonna be expensive catching up to SAO, Progressive, Accel World and Log Horizon all at once, jeez.
Likely due to Kadokawa now being co-owners with Yen Press.
I think all thats left is Spice & Wolf and The Isolator.