For all that "can see through the Force" thing that the Jedi had going on, it didn't ever really serve them that great. As such, they got rather punked and were basically wiped out. However, that doesn't mean that the Force was gone from the galaxy. Far from it. There were places where the Force just naturally seemed to gather. And those places would attract beings sensitive to the ways of the Force. It's just such places that are the focus of Nexus of Power, a new sourcebook for the Star Wars RPG, available now from Fantasy Flight Games.
The book details several places around the galaxy where the Force gathers in great shoals. There, yonst, stangelin... shoot... Sorry Anyway, no matter what era you're playing in the Star Wars history, these places can be great settings for adventure. Perhaps you're seeking out a hidden Jedi temple. Or you want to pick up a new crystal for your lightsaber. Or perhaps you were tasked with finding a rare creature that tends to lair around such places. Any way you get there, there's plenty of information about the locations, as well as various artifacts one might find in such a place.