Ask HN: Is anyone out there using Scheme for Web development?

I'm curious about what kind of both "real-world" and "toy" Web development is being done in Scheme, and what tools are available for it that aren't necessarily implementation specific (e.g., I'd prefer answers like "library foo" over "use Arc or MzScheme").

I'm teaching myself Scheme, and would like to start dabbling in Web development as part of the learning process without having to build all the tools from scratch. I was inspired in this regard, in part, by "Lisp for the Web" (http://web.telia.com/~u43518104/articles/lispweb.htm). Any tips, techniques, toolsets, and tutorials would be appreciated.