Yerba is a portal system made with PHP. Includes a database abstraction layer (initial support for MySQL and PostgreSQL). It features forums, temporary blocks, a shopping cart, surveys, news, user accounts, support for modules, several languages, mailing lists, full statistics, links, postcards, headlines, banners, chat, repository, themes design creator, graphics generator on the fly with GD library, messaging system and more. It's written in Spanish, and developed in Argentina.
