Has anyone built a web interface for Dwarf Fortress?
DFTerm2 (usually used to play Dwarf Fortress running on another machine via a telnet client) has a browser interface that can be used to watch/play through flash. I haven't used it myself but I know quite a few people use DFTerm itself.
Sadly, DFTerm2 has now ceased development.
Configuring the browser interface for access is highly dependent on your own network setup and probably another question entirely.