I am the webmaster of the online chessboard editor at http://www.apronus.com/chess/wbeditor.php. I spend about one week each year on maintaining this utility but I never get to work seriously on it. I wonder if perhaps this has some potential that should be exploited.
The specific questions that I want to ask here:
Is it useful for playing correspondence games by email?
Is it useful for posting static diagrams (just one position image) in blogs and forums?
Is it useful for posting dynamic diagrams (showing games or parts of games)?
Is it useful for playing against computer from a set up position?
Is it useful for posting chess puzzles?