I am a Moderator of a new group. My posts and replies take about a day to show up. How to fix?

Yes, this is occurring across many many groups and appears to be a glitch. The best thing we can all do is to write Yahoo Customer Care and tell them that our groups posts are being delayed or not showing up at all. You'll get an automated response back but it lets them know you are having current issues. The only "official" thing I've heard (aside from other group owners complaining) is that yahoo email accounts are being affected but I think the issues are overlapped with the groups/postings too. I'm just as frustrated as you are.