xdiskusage is a great linux app to graphically mesaure your disk usage. Can be a bit lengthy to generate on a large disk, but it's quite useful to be able to drill down into the directory structure and view the numbers.
When I started this blog (2004) it was to document Gentoo linux experiences and *nix adventures. Then it turned into posts regarding software development challenges and other findings. These days I mostly tweet (rollinsruss) and my posts are infrequent.