Recently, I posted link to a WSJ article which showed how journals manipulate impact factors. Here's a list of business journals with the highest impact factors (dated March 27), and here's one for economics (dated June 6).
Note that these are academic journals, so this whole thing might be a bitt too much "inside baseball" for my non-acaemic readers. Having said that, I find it interestingl (but not surprising) that finance-related journals comprise 6 of the business "top-ten" list, and accounting another two (Journal of Accounting and Economics and Jurnal of Accounting Research, both of which have a heavy component of capital markets-related research).
HT: Newmark's Door