I second the "ADD": Development Seed did something very similar on http://developmentseed.org/blog/2012/nov/29/open-undp-launches/ http://developmentseed.org/bl

I second the "ADD": Development Seed did something very similar on http://developmentseed.org/blog/2012/nov/29/open-undp-launches/ http://developmentseed.org/blog/2012/nov/29/open-undp-launch... and my friends at Wiredcraft are thinking about the same thing for a couple visualization websites (lots of map, lots of data, low amount of edits). Jekyll can be pretty damn slow though (especially on Github pages) so be careful with the size of your data set.