About: Ralph Meijer has been involved with the Jabber/XMPP community since late 2000 and has worked on prototyping new ideas in presenting and communicating information using Jabber. Most of these experiments revolve around publish-subscribe technologies for transporting information like extended presence and news, and have resulted in several XMPP protocol design contributions and services. He is a member of the XMPP Council that oversees the standards development process at the XMPP Standards Foundation and worked for Jaiku. He is now employed by Mediamatic Lab.