Google could easily end up shutting out their core users and promoters, thus influencing a mass exodus to other search engines. Another possibility is anti-trust. If Google succeeds in controlling all content, including the physical dissemination of that content, then Google may be in for a long Microsoft-like ride.

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It looks like it might be the addition of SEOmoz to the list too. They're above you and they're labeled "new." Personally, I wouldn't worry about it. Just keep doing what you're doing.