Namespace List
Here is a list of all documented namespaces with brief descriptions:

gloox | The namespace for the gloox library
util | A namespace holding a couple utility functions
Base64 | An implementation of the Base64 data encoding (RFC 3548)
Jingle | The namespace containing Jingle-related (XEP-0166 et. al.) classes
LinkLocal | Namespace holding all the Link-local-related structures and definitions
prep | This namespace offers functions to stringprep the individual parts of a JID
PubSub | Namespace holding all the Pubsub-related structures and definitions