[tobinharris]

http://yuml.me diagrams as an API.

This was scratching and itch, yet get used by 1000s of people every day.

[marktangotango]

This interesting, any relation to yed and yworks? Are you making money from it? Are uml diagrams the only diagram offered? I had a similar idea years ago, web front end for dot and graphviz. Never acted on it though.