Google says that a Panda refresh was pushed out this weekend. This may not have been noticed by many because this rollout is happening really slowly.
– It will take months for the update to fully roll out so your web pages might not see a change at once.
– This update will impact about 2% – 3% of English language queries.
– The rollout will allow sites that were penalized by Panda previously a chance to show up if they made the right changes.
– If your site was hit by Panda, changes in your organic rankings will show gradually.