Geo::Google::StaticMaps, which basically just transforms a map definition given as a bunch of nested hashes and arrays into a Static Maps API URL. It ought to support everything that the Static Maps API itself currently supports.
In today's globalised world most products you see on the store shelf were probably made from parts sourced from all over the world. As we become more aware of the environmental impact of transporting these parts, it is important to have easily accessible information on how a final product comes together. Sourcemap is a project of the Media Lab at MIT, and it allows users to easily visualise what components go into a product, how they are shipped, and what the environmental impacts are.