Yesterday was the actual birthday of Cesar Chavez, though here and in the eight other states where it is an official holiday it is celebrated on the closest Monday or Friday. Here are some new additions to The Best Sites For Learning About Cesar Chavez:

President Obama issued a new proclamation for 2011 declaring Cesar Chavez Day.

California Governor Jerry Brown did the same.

A Not-Quite National Holiday: Eight States Celebrate Cesar Chavez Day is from TIME Magazine.

Si Se Puede: Cesar Chavez’s Work Is More Relevant Than Ever is from GOOD Magazine and includes some useful links.