At it's core, what we've been building is an end-to-end solution for creating, storing, and working with structured content in a way that's accessible to anyone. You can check out an introduction - http://team.marquee.by/introducing-marquee/ and dig into the technical/philosophical details of our approach - http://team.marquee.by/on-content/.
When we just started out and got rejected from YC's 2012 Winter class, HN provided us with invaluable feedback that greatly helped inform how we explored the space.
Today we sit a solid year and half later with something that we're not only proud of, but are incredibly excited about its potential. We've seen a lot of people enter the publishing space over that time (and seen some of them go), been through an accelerator program (TS NYC 2012), took a since-aborted stab at fundraising, launched one of Time's top 50 sites of 2013 on our platform - http://techland.time.com/2013/05/06/50-best-websites-2013/slide/narratively/ - and are starting to get a good bit of validation for where we had hoped to see the market go.
I'd love to get the HN community's thoughts on our progress and, more generally, our approach to the space.