Google Algorithm Updates of 2009

Google Algorithm Updates of 2009
5 (100%) 1 vote
NoDateUpdateNoticeable effectReferences
1February 2009Rel-canonical TagUnknownSEO Moz, Matt Cutts
2February 20, 2009Vince ChangesUnknownSearch Engine Land, Webmaster World, Matt Cutts
3August 10, 2009Caffeine(Preview)UnknownGoogle Webmaster Central Blog, Search Engine Land, Mashable
4December 2009Real-time SearchUnknownSearch Engine Land