Named Google Updates

Panda 3.7 – June 2012
Penguin 1.1 – May 2012
52 Pack – May 2012
Panda 3.6 – April 2012
Penguin – April 2012
Panda 3.5 – April 2012
50 Pack – April 2012
Panda 3.4 – March 2012
Search Quality Video – March 2012
Panda 3.3 – February 2012
40 Pack – February 2012
Venice – February 2012
17 Pack – February 2012
Ads Above The Fold – January 2012
Panda 3.2 – January 2012
Search Your World – January 2012
30 Pack – January 2012
10 Pack (Version 2) – December 2011
Panda 3.1 – November 2011
10 Pack (Version 1) – November 2011
Freshness Update – November 2011
Panda Flux – October 2011
Panda 2.5 – September 2011
Panda 2.4 – August 2011
Panda 2.3 – July 2011
Panda 2.2 – June 2011
Panda 2.1 – May 2011
Panda 2.0 – April 2011
Panda 1.1 – February 2011
Attribution Update – January 2011
Panda 1.0 – January 2011
Social Signals – December 2010
Negative Reviews – December 2010
Caffeine 2.0 – June 2010
May Day – May 2010
Caffeine 1.0 – August 2009
Vince – February 2009
Dewey – April 2008
Buffy – June 2007
Universal Search (now called Blended Results) – May 2007
False Alarm – December 2006
Big Daddy – December 2005
Jagger – October 2005
Gilligan – September 2005
Bourbon – May 2005
Allegra – February 2005
Nofollow – January 2005
Brandy – February 2004
Austin – January 2004
Florida – November 2003
Fritz – July 2003
Esmerelda – June 2003
Dominic – May 2003
Cassandra – April 2003

Google makes minor updates to their algo, but the big changes have typically hurricane or animal names. The updates come fast and furious slashing at websters work and effort to present their work.