R Tutorial: Mining Twitter for consumer sentiment
All the code used to prepare and present my R tutorial on sentiment analysis. More information and slides are available on my blog.
Zipcode R package: U.S. zipcode database
This package contains the "CivicSpace US ZIP Code Database" by Schuyler Erle, August 2004 as a data.frame. It contains city and state name, latitude and longitude, and (possibly outdated) timezone information for over 98% of U.S. ZIP Codes as of 2004.
The source data is available in CSV format from http://www.boutell.com/zipcodes/ and http://mappinghacks.com/data/ and has been released under the Creative Commons Share-Alike license.