[jacobobryant]

Most of the essays currently are indeed blog posts from the last few years. For now I'm planning to rely on user submissions for the catalog--if you have some favorite classic/non-tech essays, you could submit them (there's a URL input box after you sign in).

Before today there were about 60 submitted essays; we're up to 117 now. So the recommendations going forward probably won't be dominated by my own submissions, but they will likely still be tech-focused, given the (initial) HN/programmer user base. Eventually (after we have enough users/submissions/click data), Findka should adapt to your preferences quickly. i.e. even if most of the catalog is tech-focused, the algorithm will look at what essays you've submitted and select recommendations from the appropriate niches. But at this early stage, the recommendations will be sampled more-or-less uniformly from the entire catalog.