Originally Posted by Gavinfoxx
Yea. Archivists with Alternate Spell Source or whatever.
You don't even need that, necessarily. Just a friendly Warlock with UMD and Scribe Scroll. Seriously.
Warlocks are Arcane, and thus, they make arcane scrolls.
They can explicitly fake divine spells for purposes of item creation... including scrolls. So a Warlock can make an Arcane scroll of, say, Cure Light Wounds, which you can then learn.