With the speed that articles drop from the system, and the probable increase in discussions that may have already happened, it sure would be nice if articles could be classified (i.e.: Funding, Infrastructure, Programming, Startups, etc etc), so that users could hit on the class their interested in to see what was discussed in the past. The startup bar could get an added heading like "categories" that would then let the user select. You could allow user based classification at the article and comment level to feed the categories. Maybe you could let the leaders add new categories (preferably a hierarchical structure)