With Google's new algorithm update, everyone wants to know who the winners and losers were - but reports can't always be trusted. That's according to a good read in the SEM Post today. If you follow your fellow SEOs and marketers on Twitter, that's where most of the chatter is coming from.
According to the article, it's a combination of factors that make weather reports somewhat unreliable. First, they mostly track the big boys and girls. So they might give a decent reading of what's happening to the biggest players, but not everyone. Second, a lot of "weather tracking" programs are pretty secretive. So if you don't know what's going into the report, can you really trust the results?
I'll always share/upvote something that advises people to do their own research and not jump to conclusions. Make the tools work for you - don't sweat for them!