Interview with Google’s Matt Cutts at Pubcon There's also an audio version. He talks about duplicate content, PageRank, etc. Here's an interesting quote about the Supplemental Index:
Thanks for posting that link - it's a good interview worth reading all the way through. Great questions like 'Do you think we are moving towards algorithmic search results having substantially more human validation and/or intervention?', and 'Will the reasons for a site’s PageRank reduction ever be disclosed to webmasters in Webmaster Central?', and 'How long, do you think, it will be until competitors start taking each others’ sites out in Google with aggressive link buying?' Interesting stuff, even if not ground-breaking Cheers