I don't see that it is the colloquial name of the language even if people sometimes search for it. In conversation, AFAIK it tends to be called Go. For example, look through the golang-nuts mailing list and count how many people say "Go" versus "Golang" when not referring to the website or mailing list.
Have you tried debugging something and search for for "go" rather than "golang"? You're both correct here: the name of the language is Go, and when searching google for help with an error or something, it's best to search for golang rather than go, or you'll be wading through a bunch of unrelated pages.
