In Google Lore ---what are 'Hilltop', 'Florida' and 'Big Daddy'?

[Standford]

[Peter Nikolow]

This is Google algorithms changes:
Hilltop is released Feb 2003
Florida is being released Nov 2003
Big Daddy - Dec 2005

You can read more about them on link below http://moz.com/google-algorithm-change

[Jhon]

Hilltop: An old and often contested algorithm that calculates PageRank based on expert documents and topical relevancy. The theory behind it was to decrease the possibility of manipulation from buying high PR links from off topic pages. This was implemented during the Florida update, which is our next topic.

Florida: The highly controversial update implemented by Google in November of 2003, much to the chagrin of many seasonal retail properties. There were several theories as to what was included in this update; Over optimization filter, competitive term filter, and the Hilltop algorithm. This update had catastrophic results on many web merchants.

Big Daddy: A test data center used by Google to preview algorithm changes. This information was made public around November of 2005 by Matt Cutts and allowed marketers to preview upcoming SERP’s.

.........Dragg.in