Good communities like HN
buckler: Past Discussions (search for more):- http://news.ycombinator.com/item?id=576677- http://news.ycombinator.com/item?id=199103Suggestions:- http://similicio.us/search.php?url=news.ycombinator.com&...- I was also going to suggest stackoverflow.com, but you got that down- http://episteme.arstechnica.com/Usual hacker suggestions (not necessarily communities):- http://research.google.com/video.html (Google Talks)- http://www.ted.com/- http://lwn.net/ (Linux Weekly News)- etc.