http://www.reddit.com/r/askscience/comments/1obf0w/the_earth_rotates_eastward_but_what_causes_it_to/
Chode, a warning on my link to you ... some of the information contained therein is not correct.
They rotate clockwise on one side and counterclockwise on the other:)
Bodies in the solar system tend to rotate about an axis parallel to the sun’s axis, and in the same direction. Neptune is a big exception, and there is much theorizing as to why.
Of course, the general phenomenon is taken to be a result of the formation of the solar system from a rotating disk.
I don’t believe other nearby stellar systems are thought to share the rotational orientation of the Solar system. That’s an interesting question though.