CREDITS FOR WWW::Yahoo::Groups 1.7.6
Simon Hanmer for having problems with the module, thus resulting in
improved error reporting, param validation and corrected prerequisites.
Since then, Simon also provided a basis for the lists() and
last_msg_id() methods and is causing me to think harder about my
exceptions.
Aaron Straup Cope for writing XML::Filter::YahooGroups which
uses this module for retrieving message bodies to put into RSS.
Randal "Merlyn" Schwartz for pointing out some problems back in 1.4.