This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
Go was originally designed as a systems programming language but turned out to be far more general purpose. Go is used by some Google Web Apps (three languages are supported for that: Java, Python, and Go), and Go provides some pretty decent web functionality out of the box from its standard library. For example, the golang.org website is a Go application.
I'm not sure what you mean about its approach to HTTP, although I know that some very high traffic sites are using Go.