Its a free website but you need to be registered and logged in to read it, sorry I forgot to mention that as I'm always logged in so forgot about their recent changes. Its free though although it does have a VIP area that isn't free but that's one section, they have over 20 sections from search engines to blogs to domain names. You should register if not already as its the number one webmaster community on the web, they are all great guys and there are regular WordPress threads with some great solutions posted by members to problems, especially of a search engine nature.
The infor inside is very valuable as these guys know what they're talking about, they have reps from Google who are members, people from Yahoo, Blogger etc.
Opening post is asking about duplicate WordPress content and Google, whether it will effect rankings and count as a penalty. Others are sharing experience of being penalised and others are showing what they do with code examples of how to get around the indexing of duplicate content etc. Very informative thread.
PS Thanks for moving it.