i am working in a SEO project .
and monitor my competitor website backlinks every day.
i am using linkdomain:sitedomain -site:sitedomain in Yahoo! to find backlink count.
i was about 9,000 link yesterday but today is 22,700 .
(all are for my competitor)
i am really shocked with this event! how it happend?
how can i find out where these massive count are from? from what sites?