I have only recently came back to Google newsgroups due to a few good Google parenting newsgroups. I have found Newsgroups to be useful as they allow you to post a message asking for advice or a place to come and discuss ideas. But the disavantage of the newsgroups is, (as displayed on soc.libraries.talk) the newsgroup can be filled with advertisments and also there can be a lot going on and your post can get missed or even not answered.
