Much of this is very old and not maintained by current players. As such, it might not exist still.
Zefram’s archives contain old rules, proposals, and mailing list archives.
The Agoran Weekly Journal summarises events from 1997 to 2007, and may be updated in the future.
Murphy’s site also contains a list of acronyms used in agora and a list of wins.
Andre has a list of old CFJs.
omd’s CFJ database displays more recent CFJs and their results.
The Agora Notary Wiki hosted details about contracts from late 2008 to early 2010 (and became obsolete when contracts were repealed).
Finally, just for fun, oerjan took Agora’s horoscope.
Nomic.Club Wiki - a wiki of nomics current and historical
Peter Suber’s Website - the philosopher who created nomic.
Suber’s Initial Ruleset - the first nomic ruleset, from which most nomics derive their rules in part or whole.