I think it would be a lot easier to find the correct merchants if there was more details on the Merchant search results page. For a start you should delete the "View those with Datafeeds" link and just have an icon next to a merchant if it has a datafeed in the search results, icons for auto deposit & auto approve etc, maybe like a spreadsheet.

I find when doing some serious searching for merchants with datafeeds I usually have to have several windows open, one for the "View those with Datafeeds" another for "View and Search Merchant List" etc as most of these pages have features the other one does not have.