I haven't written a post-mortem, but last week I had a post on how http://planscope.io http://planscope.io (formerly Projector) made me $119.50 in a month. It g

I haven't written a post-mortem, but last week I had a post on how http://planscope.io http://planscope.io (formerly Projector) made me $119.50 in a month. It got crazy traffic - about 40k uniques. I was really surprised how many people went on to explore exactly what Planscope is. About 20% of people didn't bounce, and ended up checking out the product tour. I netted about 300 new accounts (which was about a 50% jump in user accounts!) I think the winning formula for a good product blog is: Educate your audience (this is the reason they visited in the first place), have a very clear call-to-action at the bottom of the post ("Are you a freelancer looking to..."), and have an easy outlet to view the rest of your marketing site.