25+ more ways to bring data into R

The rdatamarket post on the Revolutions blog and this post on Decision Stats reminded me about my list of Data APIs/feeds available as packages in R on Cross-Validated (which is a great site that you all should use).  Many of these packages are from Omega Hat, which is an awesome site.

This is the most comprehensive list I'm aware of, so please alert me to any ommisions:

Free Data: Data Source - Package

• Google Finance historical data - quantmod
  
• Yahoo Finance historical data - quantmod
  
• Yahoo Finance historical data - tseries
  
• CFE historic futures prices -  qmao
  
• OANDA historic exchange rates/metal prices - quantmod
  
• FRED historic macroeconomic indicators - quantmod
  
• World Bank historic macroeconomic indicators - WDI
  
• Google Trends historic search volume data - RGoogleTrends
  
• Twitter - twitteR
  
• Zillow - Zillow
  
• New York Times - RNYTimes
  
• US Census 2000 - UScensus2000
  
• infochimps - infochimps
  
• datamarket - rdatamarket - requires free account
  
• Factual.com - factualR
  
• Geocode addresses - RDSTK
  
• Google News - Roll your own
  
• Earth Sciences netCDF Data - Roll your own
  
• Climate Data - Roll your own
  
• FishBase - rfishbase