As a service for my readers (the few, the proud...), I thought I'd spotlight a very useful blog called North of Reality. It's a fiction blog written and edited by Uel Aramchek, and it is just chock full of fantastic inspiration for fantasy gaming. Each entry is a snippet of his bizarre, wonderful imagination, and many of them have gaming application -- in fact, they're written in a way that I think he games in his spare time.
For narrative gamers (using, say, Dungeon World), many of the entries could be used as written (look at, for example, The Understeel). The next time your group finds a potion, choose something from the archive that's been tagged "bottled goods." Introduce binari into a remote city's economy. Some snippets are dripping with potential character backstories.