PubSubHubbub started catching my interest. While I figure out how it works, I'll post some links here. To get started and understand the idea, this helped me:
Pubsubhubhub for Dummies (and yes, by "dummies," I mean "me"). - A dollop of daisy
Visualization end explanation of how OpenID works:
The articles are rather old but well worth the read to get the general gist of what is going on when you want to use and understand OpenID.
Part 1:
http://enthusiasm.cozy.org/archives/2005/05/openid
Part 2:
http://enthusiasm.cozy.org/archives/2005/05/openid-part-ii
Part3 and flowchart:
http://enthusiasm.cozy.org/archives/2005/05/openid-part-iii-pingpong
Part 4:
http://enthusiasm.cozy.org/archives/2005/05/openid-part-iv-url-as-global...
Getting started with OpenOffice Basic.
http://wiki.services.openoffice.org/wiki/MediaWiki:Collections/BASIC_Guide
There is obviously no serious documentation out there - If you are aware of anything better, you're welcome to help me out...
Useful for getting started:
Tutorials For OpenOffice - free help for anyone using or teaching OpenOffice, Home Page