"What is OpenID commenting? How do I use it?"
New in Friends and Security Levels, #232:
How do I let someone from another site read my Friends-Only entries?
New in Troubleshooting, #233:
Why do I receive an error message when using my LiveJournal URL as my OpenID identity?
Edited to include OpenID info:
152: How do I add my friend's journal from a different journal site to my Friends list?
20: How do I ban/unban a user from commenting in my journal?
I'm sure I'm missing some where it would apply, so feel free to suggest other revisions as usual.