It would be nice if there were categories or tags for submissions. I would love it if I could filter the front page to show just "coding tips", "industry news"

It would be nice if there were categories or tags for submissions. I would love it if I could filter the front page to show just "coding tips", "industry news", "startup advice" in the same way there are filters for http://news.ycombinator.com/ask http://news.ycombinator.com/ask or http://news.ycombinator.com/jobs http://news.ycombinator.com/jobs