Wasn't sure whether to put this in White Hat SEO or not, but here goes anyway. I've been SEOing the shit out of a landing page.. The basics really, nothing too over the top and mostly regarded as white hat.

Y! Answers, Blog Posting, Video Posting, Article Submitting and the like. Absolutely no spam. All content I posted had "value".

Seems my site has been banned from the big G. Can anyone possibly enlighten me as to how this is done on Googles end? Is this an automated process?

Anyway, It's a damn shame because I was raking it in, with 6 or 7 good keywords in the top three. Plus a good 10 hours work. out the window. Oh well, no one to blame but myself. I'm pretty pissed.

This leads me to my next question.. How is one to avoid this in the future?

/End Rant/QQ