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http://news.ycombinator.com/item?id=2303726 http://news.ycombinator.com/item?id=2303726 http://news.ycombinator.com/item?id=2398989 http://news.ycombinator.com
by rimantas 15y ago
http://news.ycombinator.com/item?id=2303726 http://news.ycombinator.com/item?id=2303726
http://news.ycombinator.com/item?id=2398989 http://news.ycombinator.com/item?id=2398989
(There may be more recent ones)
As for developers' conferences, you got to see yourself. Should corelate with the second poll though.