SEO is tough in the web app market, but if you're a content based website
There is no rule that says you can't sell a web application with a content-based website. I mean, if you're using AdWords, you're essentially outsourcing the production of content leading into your landing pages to the more efficient content farms, who will get X level of results with pages tangentially related to your product festooned with ads (including your's and competitors'). Why not write the content yourself, make the quality a few notches above "How To Boil Water", leave off the competition's ads, and pay for the content once as opposed to leasing traffic from it monthly?
There is no rule that says you can't sell a web application with a content-based website. I mean, if you're using AdWords, you're essentially outsourcing the production of content leading into your landing pages to the more efficient content farms, who will get X level of results with pages tangentially related to your product festooned with ads (including your's and competitors'). Why not write the content yourself, make the quality a few notches above "How To Boil Water", leave off the competition's ads, and pay for the content once as opposed to leasing traffic from it monthly?