RGoogleDocs is fantastic. It allows one to store data on Google and read it in in real time to R. I tried to install it on a computer the other day and lo and behold all I c
RGoogleDocs is on omegahat: http://www.omegahat.org/RGoogleDocs/
RGoogleData is on RForge: http://r-forge.r-project.org/projects/rgoogledata/
RForge is a sourceforge-like place for the development of R packages.
Omegahat is more general, providing open-source software for statistical applications. That includes some R packages, but also software for other environments.
R packages on both sites can be installed directly using install.packages()
with the appropriate repos setting.