Not Panda: Google Confirms Another Core Search Algorithm Update
 

Google has confirmed that this was an update to the core search algorithm and nothing related to the Panda algorithm that we are expecting to see updated shortly. In addition, Google told us to expect core search algorithm updates in the future as they continue to work on making search quality better.

Google sent us this statement:
This is not a Panda update. As you know, we’re always making improvements to our search algorithms and the web is constantly evolving. We’re going to continue to work on improvements across the board.

Authority sites are ranking on top while the spammy ones are losing their rankings.

Thanks for sharing this and this is very nice that google futher thinking for more improvement..

The interesting part is that many of the automated tracking tools such as Mozcast showed huge spikes in terms of changes happening in the Google search results.