So a few weeks ago I received an e-mail from Markus Weichselbaum, who runs a collaborative art site called TheBroth out of an office in Leederville. I’m surprised I didn’t hear about these guys sooner: their site is not half bad and their users make some very fancy pictures. There’s even a puzzle generator that scores as yet another pointless-but-entertaining way to burn time in a Web browser

The most geeky-cool part about the site’s technology is the extent to which it’s publicly documented on their blog — revealing, for instance, that they use amfphp for RPC and PHP-GD to generate images (just like my xkcd map mashup).

More impressive, though, is the community that the site’s got — it seems quite active and tight-knit on the level of a LiveJournal or a DeviantArt. And indeed that’s the direction in which I see the site developing over time (assuming no dramatic changes): building a not-enormous but enthralled niche user base.

At times the advertising feels a bit garish in comparison to the images, and it can take some determination to get stuck into one of the tile mosaics (that being the older of the two drawing styles they offer). Also, I’d love to see an embeddable game widget so y’all could contribute to a mosaic here on this page. But it still puts to shame lots of other online graphics services, like the little Facebook toy I recently put together (which focusses on communication rather than collaboration, and uses Apple’s canvas tag rather than Flash even though the latter is the better graphics platform).