New Google update targeted to wipe out spam in niches like payday loans has started. This update would be spread over months rather than days, so you cannot expect to see all the updated changes soon. The real change would get reflected in 1-2 months. So, stay tuned for that.
We just started a new ranking update today for some spammy queries. See 2:30-3:10 of this video: goo.gl/ufCiH #smx
— Matt Cutts (@mattcutts) June 11, 2013
Here are some updates that happened recently –
Penguin 2.0 Update
Next Generation Penguin Update
Panda Update Rolling and Will Continue to Roll
Google Panda Update 24
Here are some discussions and coverage related to this update –