Actually that link gave me little to no help. suggestions.yahoo.com/?prop=groups seems to be the area you may have meant.
Sadly, it seems like Yahoo groups is trying to move away from their built-up online communities that use groups for html hosting. It seems the symptoms I was referring to are a permanent change that no longer allow html content to be served.
We have dozens of groups, and they're suddenly no longer usable... at least not for their primary reason. Sad... years of hard work without even a warning of a change.