I try hard not to cover Facebook or social media topics here but this is a big one, Facebook announced they are going to be updating the news feed algorithm to show more content from your friends and less content from publishers and brand pages. Facebook wrote:

Facebook told these publishers and brands that they “may see their reach, video watch time and referral traffic decrease” as these updates are rolled out.

There is a huge amount of coverage on this that you can find on Techmeme.

Here is Mark Zuckerberg’s announcement on this:

Forum discussion at WebmasterWorld.