Google improves search for fresh documents by Matt Cutts

Here is another good article from Matt Cutts for review:

http://www.mattcutts.com/blog/google-improves-search-for-fresh-documents/

Matt refers to an article from May 30th, 2007 by Tara Calashain:

http://www.researchbuzz.org/wp/2007/05/30/google-makes-change-to-daterange-syntax/