PUBLIC MARKS with tags api & format

MessagePack is an efficient binary serialization format. It is faster and smaller than JSON. Implementations are available in dozens of languages.

Gisgraphy is a free and open source framework that provides fulltext search and find nearby services for places on earth (aka : toponyms) from several databases (aka : gazeteers) on the Web (mainly Geonames, but not only : ESRI for instance). It provides an importer to inject the data into a strongly typed Postgres / Postgis database and use them via 2 webservices or a java API : geolocalisation and fulltext in many format (XML, json, PHP, ruby, python, Atom, RSS / GeoRSS).