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Lots of old links to our wine rack store site from many years ago, how do I get these removed? block them?  Not sure if Penguin got us because of these....

When I delete a labels how do I prevent crawlers form tagging these as not found?  Tried a word press 301 redirect, didn't help....help!  I've got 1,000's of these errors from removing excess tags and labels from my blog.

searching for a domain for a new branch of business, the original .com domain was no longer available yet the same domain with a .biz was.  Question, how does google treat and rank .biz vs .com, same? less?