I write about R every weekday at the Revolutions blog: http://blog.revolution-computing.com and every month I post a summary of articles from the previous month of particular interest to readers of r-help. http://bit.ly/9GoTVd announced the availability on YouTube of "What is R", a 4-part video based on a recent webcast I hosted. http://bit.ly/bVSSaH announced a webinar I hosted on REvolution's debugger for R (a recorded replay is now available). http://bit.ly/b86kGB seeks a Parallel Computing developer to work at REvolution Computing. http://bit.ly/9i2qeO reviewed an application of R to create social networks from 10Gb of phone call data. http://bit.ly/bPwsfz linked to a slide presentation by Ryan Rosario explaining the base graphics system in R. http://bit.ly/9MPlec updated a previous geographic visualization of an election, illustrating that color scales do matter. http://bit.ly/aOmo1z noted the great lineup for R/Finance 2010 in Chicago (register now!). http://bit.ly/cMkjDa reviewed CRAN packages released and updated in January & February. http://bit.ly/cXiO8H linked to information about Frank Harrell's rms. and Hmisc packages, and his upcoming course. http://bit.ly/bZ6dLI linked to a story about creating a cluster in Amazon EC2 for parallel computations with the multicore package. http://bit.ly/bvkiQ2 gave some examples of creating pretty HTML and LaTeX tables with the xtable package. http://bit.ly/9M508I showed how to create a mosaic plot (or treemap) in R. http://bit.ly/coPTj9 noted media attention for the R Project, named as 2010 Editor's Choice at Intelligent Enterprise. http://bit.ly/aK7PAU linked to Dirk Eddelbuettel's presentation about the Rcpp interface for C++ code in R. http://bit.ly/bzPaII linked to some useful tips on speeding up R code with the Rprof function. http://bit.ly/9u5Fwv linked to a useful introduction to R's basic object types (vectors, data frames, etc.) http://bit.ly/dbaGau linked to a Sudoku solver for R (using a different method than the sudoko package) http://bit.ly/cucF8I noted that Tex Hull, co-founder of SPSS, has joined the team at REvolution Computing. http://bit.ly/btmKQO linked Salvio Rodrigues at the Open Source blog, who found that Robert Gentelman's appointment to the REvolution Board was "a great impetus ... to look at R again". Other non-R-specific posts in the past month covered a newspaper miscalculating a simple probability (http://bit.ly/a8ZRLV), the fate of the employees of the collapsed megabucks (http://bit.ly/bPIYXy) and (on a lighter note) Carl Sagan singing again, this time about evolution (http://bit.ly/a7d2sr), and visualizing what happens when you reply-all to an email list (http://bit.ly/cuLaNh). The R Community Calendar has also been updated at: http://blog.revolution-computing.com/calendar.html If you're looking for more articles about R, you can find summaries from previous months at http://bit.ly/dt1AZe . Join the REvolution mailing list at http://bit.ly/bOISmy to be alerted to new articles on a monthly basis. As always, thanks for the comments and please keep sending suggestions to me at david at revolution-computing.com . Don't forget you can also follow the blog using an RSS reader like Google Reader, or by following me on Twitter (I'm @revodavid). Kind regards to all, # David Smith -- David M Smith <david at revolution-computing.com> VP of Marketing, REvolution Computing ?http://blog.revolution-computing.com Tel: +1 (650) 330-0553 x205 (Palo Alto, CA, USA) Download REvolution R free: www.revolution-computing.com/downloads/revolution-r.php