Martin Fowler Brad Frost Phil Sturgeon Ben Nadel Mitchell Hashimoto

Golang seems to be gaining in popularity, cool. But I have a few honest questions that aren't easy for me to find answers to. Why would one want to learn Go? What types of programs does one build with Go (web, cli, etc.)? What makes Go a better language than say another language like Haskell, Python, Lua, Clojure, etc? Thank you!