I am seeing some early signals within the community that there is a potential Google update being pushed out. It is really early. It might be some limited Google test, which they are constantly doing or really early signs of a Penguin update. I really do not think the signs point to Penguin, just yet but it is all very early.

The signs are definitely stronger than Google update from earlier this month.

Tools Showing Changes

So we have some automated ranking tools that show changes including RankbRanger, Accuranker, SERPMetrics, SERPs.com and Mozcast but most are not yet updated with last nights or this mornings metrics. So we need to wait until later today to see what they come up with.

At 9am EST, Mozcast updated and is showing stormy weather:

SEO Community Chatter

The SEO forums and community are chattering about changes in WebmasterWorld and BlackHat Forums. I am also seeing people reach out to me on Twitter and email about it.

Here are some quotes from the threads:

RankBrain happening? My site is with a great traffic flow, unusual for a Monday night.

Or penguin coming?

Here is one tweet of many:

Again, this is all very early, so it is hard to say if something is 100% going on.

Have you noticed significant changes over the past 12 hours or so?

Forum discussion at WebmasterWorld and BlackHat Forums.