Journals in the IS research
AIS (Association of Information System) has a journal ranking page as below:
http://isworld.org/csaunders/rankings.htm
And some links on that page seem helpful. For example, journal lists from UKY and OU prove valuable because their explanation of the reason why choosing these journals:
University of Kentucky List: http://isworld.org/csaunders/uky.htm
University of Oklahoma List: http://isworld.org/csaunders/ou.htm