Thanks for the insights.

To give a brief background, the site I've been working on (and the inspiration for the alias I'm using here) is Eruvian.com. It's an attempt to build a web-based system to allow individual gamers to publish their homebrewed gaming content in a simple, standardized, and searchable format. Beyond that it is specifically designed to facilitate collaborative world-building. The vision is to see if tens, hundreds, or even thousands of creative GMs are willing to work together to build one or more campaign settings with unheard-of detail. We're hoping that many hands will make light work, providing high-quality, detailed content built, reviewed, and used by the gaming community itself.

One challenge of the project is that it would be best if there was a single, standardized format for maps. If 100 different people submit maps, and they are in four or five different formats, then Eruvian's users will have to have four or five different mapmaking tools in order to be able to edit them (the maps are meant to be easily customizable, so we're delivering the actual map files to our users in addition to visible PNGs showing what the files contain).

At the moment, I've chosen to start off with CC, simply because it is highly accessible for mapmakers (no need for a graphic arts education or ton of money), specifically designed for these kinds of maps, and it is totally accessible for users (CC has a free printer & viewer). It's also because it seemed the most flexible - I've done overland, city, and combat-level maps in the same tool.

However, ultimately it will be the Eruvian community's decision as to what to standardize on, with Eruvian.com encouraging or enforcing that standard. The site's only been open 5 days and discussion has already begun around standards, with CC and Inkscape being the two primary contenders so far.

Given the feedback here, I think I'll continue to encourage CC and see how it all unfolds. I may also invite the major software providers to influence the community as well.

Anyway, thanks again for your opinions, and if anyone else has any others I'd love to hear them! =)