Here is a list of the top journals in Political Science, ranked by h5-index: "h5-index is the h-index for articles published in the last 5 complete years. It is the largest number h such that h articles published in 2010-2014 have at least h citations each." This is what Google Scholar uses in its rankings.
The following resources contain journal articles and other research materials relating to the study of Political Science. Go to the Best Bets box in the Getting Started tab to find additional resources.
Databases & Journals
American History Databases