There was some update from google (yesterday or day before)as a result of which the ranking of most of my websites took a beating

Anyone else noticed some change in their rankings or may be i got hit by some sort of penalty.
GBot Reviewed by GBot on . Latest Google update There was some update from google (yesterday or day before)as a result of which the ranking of most of my websites took a beating Anyone else noticed some change in their rankings or may be i got hit by some sort of penalty. Rating: 5