I've done web programming in Lua (w/ WSAPI); Lua is generally like Javascript's non-glue-huffing older brother, and coroutines/iterators remove a LOT of issues.

I was working on an event-loop-based web server+framework in Lua, but then I got into Erlang and realized how utterly lost the whole endeavor was. (But who wants to program in Erlang? I hear it's bad at strings, or something.)