At FOSS4G we gave two presentations. The videos from other presentations are FOSS4G 2014 album. I have to commend the organizers for gathering such a rich collection of videos. Most of the videos turned out very well and are also downloadable in MP4 in various resolutions. It really was a treat being able to watch all I missed. I think there are still some videos that will be uploaded soon. As mentioned lots of PostGIS/PostgreSQL talks (or at least people using PostGIS/PostgreSQL in GIS).
If you weren't able to make it to FOSS4G 2014 this year, you can still experience the event Live. All the tracks are being televised live and its pretty good reception. https://2014.foss4g.org/live/. Lots of GIS users using PostGIS and PostgreSQL. People seem to love Node.JS too.
After hearing enough about Node.JS from all these people, and this guy (Bill Dollins), I decided to try this out for myself.
For those of you who will be attending either of our PostGIS sessions in Postgres Open 2014 in Chicago September 17th, we've put up a page where we'll be posting links to the data we'll be using as well as the examples so you can follow along and copy and paste. Page is http://www.postgis.us/pgopen2014.
We ask that you bookmark the page before you come and try to install PostGIS 2.1 if you haven't already. Not much to see there yet. For those who haven't signed up, it's not too late. For those who will be unable to make it, we'll try to post all the content from the tutorials on the above page.