According to Search Engine Roundtable, a Google PageRank update is underway. If you want to discuss, here's a link to an SEW Forums thread. More disscussions about the update are listed here.
Optimising Digital Marketing Campaigns with Search, Social and Analytics
At SES London (9-11 Feb) you'll get an overview of the latest tools, tips, and tactics in Paid, Owned, Earned, Integrated Media and Business Intelligence to streamline your marketing campaigns in 2015. Register by 31 October to take advantage of Early Bird Rates.