I swear I remember this diagram from the GNU Arch days.
I think this would be pretty easy to do with gpplot2, but Portfolio looks like its worth checking out too.
The description of fitting coxph to time dependent data here seems to be better than any I've found yet.
Some nice GNU/Linux-based ways to secure erase SSD and other disks.
Neal Caren's (UNC) data scraping/processing tutorial. Potentially a useful teaching/learning resource?
Nice checklist of browswer tweaks (I've done most of these already).