SOCKS
SOCKS is a SOCKS4, SOCKS4A and SOCKS5 proxy package for Go.
Quick Start
Get the package
go get -u "h12.me/socks"
Import the package
import "h12.me/socks"
Create a SOCKS proxy dialing function
dialSocksProxy := socks.DialSocksProxy(socks.SOCKS5, "127.0.0.1:1080")
tr := &http.Transport{Dial: dialSocksProxy}
httpClient := &http.Client{Transport: tr}
Alternatives
http://code.google.com/p/go/source/browse/?repo=net#hg%2Fproxy