I wonder if conversion rate from free to paid accounts is similar in other industries.
If so, the numbers are quite sobering.
If even a successful, highly targeted and well marketed SaaS product with 100K users and millions of pageviews makes as much profit as someone working for minimum wage flipping burgers, it seems that most startups don't stand a chance of ever getting ramen profitable.
I'm not deliberately trying to be negative, but I'm wondering why your revenues are so low even with such a massive amount of traffic.
Is your free offering so good that most people don't feel the need to upgrade?