I have been reading some rumors saying about another flux is coming. Matt Cutts said in the SES San Francisco that Google engineers are working hard on the next Penguin update. I can feel that because the last update was happened 2 months ago and everyone, especially the ones that have been fixing their sites, were expecting a monthly update and see how their fix ‘compliant’ with the algorithm. Matt also mentioned the next update will be big. It sounds tough.
Google sent a batch of unnatural warning message a couple of works ago and they encouraged webmaster fixing their errors, by removing the inorganic links and also let them know if the bad links can’t be removed. Hence I expect there were quite many webmasters freaked out and confessed their link building activites in front of the Google God, thus it means G has a much better understanding on who are the spammers, and which sites are selling links. Probably G is working on that and incorporating these information to the next update.
Fasten your seatbelt, and wait for the next update.