Google advises us to do the following:
"If you see a site that is participating in link schemes intended to manipulate PageRank, let us know. We'll use your information to improve our algorithmic detection of such links."
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google.com...]
My question is whether you use this tool to report your competitors?
For example, one of my competitors has created a promotional widget for blogs that has keyword rich anchor text it. It has no other function, and is solely a promotional syndicate. Google says you should nofollow those links within the widget, but I've found over 100 referring domains linking to the competitor using this widget.
Would you expose your competitor by reporting them to Google? Have you before? Do you do it regularly?