Another method of FTL travel is to "Fold" space. This means a device can bend space-time so that travel between two points is instantaneous.
This can be visualized is by thinking of the universe as a sheet of paper. Now make two points a good distance apart on the same side of the paper. Draw a line between the two points, this is the normal distance traveled. Now fold the paper so the two points touch, this is the distance traveled when you fold space.