Please let me introduce the availability of an alpha release of QWE, "QWE's not WEB for Emacs".
QWE is a proof of concept to build a WYSIYWG literate programming system, initially implemented in (but not limited to) Elisp.
It is based also in a lightweight mark-up language to support document elements (sections...), links, images, format characters, etc. It is extensible, and can be used with virtually *any* programming language: QWE elements are written inside in-line comments.
Although QWE is under development, and somehow "under specification", it is quite usable. QWE's programmed using QWE.
Please visit http://www.nongnu.org/qwe for more information.
Elisp/Literate programmers and contributors are welcome.