As Davidbliggs said Wordstream is really good, but i'd add you need to be managing at least 40 different campaigns to see the value in this product. If you're doing less than you may want to stick with manual management or use Google's MPC panel (if you are applicable to get access).
That's interesting - I bet we're going to find that theirs a pattern to what they're tracking as unnatural links. It'll likely be that vanilla directories (phpLD directories are basically dead at this point).
It's a tough niche! Promote it wherever you can. Tell your friends and family about it.Place a link in your email signature so that every email you send has a link to it. Get your friends to share it on their social media pages to their friends and family.If you have money, buy ads to promote it!