Dunzbumz - 8:11 am on Aug 17, 2013 (gmt 0)
I'd say in our niche we have the most comprehensive data to the extend that we only have one real competitor, and they charge for access to their data. The data itself can not be obtained by scraping the web.
There are others, but their datasets are much-much smaller - mostly what they managed to scrape from our website before we blocked them. Some of them rank better than us, occasionally :-)
I doubt that our abrupt fall after almost two years of climbing up is the result of some long-term strategy by Google. Why propagate us at all, then? I'd expect slow degradation, if that was the case. GWT doesn't show any significant falls in query/position - some positions went up, some went down, all as usual.
Though GWT stats started lagging more now: until the 17th the latest stats were for the 11th, and now, kind of, caught up. I hoped to see manual actions or something, but no.