I've been using various free SERP Trackers, though some work better than others. But is there really a way to discern the correct rankings from the wrong ones? I need to know what keywords to work on, and right now I'm sorta lost based on my results...
Do you have an account with Google Webmasters? Though not completely accurate but it gives you an idea of the top 10 keywords that your site is ranking for and it is worth promoting those...