For everyone who is asking questions here about LOPSA, you'll find (most) answers at the main LOPSA site, LOPSA.org.

To recap:

1. International - small but growing contingent outside the US
2. Online community (mailing lists (https://lopsa.org/mailinglists), IRC (https://lopsa.org/irc), personal blogs at LOPSA.org (https://lopsa.org/blog)
3. RSS feed of over 40 LOPSA member blogs, most focused on sysadmin
4. If you want to find or help form a local chapter, contact LOPSA Board (https://lopsa.org/localprogram)
5. Open to all "administrators": all OSes, DBs, storage, network, security, web, etc.

For LOPSA members, remember that voting for the Board begins NEXT WEEK!