The best part about thalsamus is that they have all of their data in one place, which makes it easy to find new advertisers when I need them! Also there's no additional charge for using this software (I used some other services with extra charges).
There are certain things you can't do without having an adwords account/Google Adsense accounts etc., but if your looking into finding more adsense publishers then definitely use thalisamus as well because its so much easier than searching through google or another website yourself! Great tool overall just make sure u understand how everything works before signing up otherwise ur going to waste time trying different options until something clicks haha :P i think we've found most of our publisher sites now though!!