FAQ #189: Why am I getting an "irreparable invalid markup in entry" error?
FAQ #190: Why do I get an "AVS mismatch" error when trying to make a payment?
FAQ #191: Why am I receiving an "incorrect time value" error when I try to update?
FAQ #197: What are LiveJournal's policies regarding commercial activity, "spam", and other forms of promotion?
FAQ #198: Can I cross-post an entry in multiple journals or communities?
FAQ #200: How do I hide communities that I am a member of?