[Discover] Unix Crontab - setting up cron jobs using crontab http://www.adminschoice.com/docs/crontab.htm (linux sysadmin reference crontab)
 [Discover] HTML Basix - creating a crontab entry http://www.htmlbasix.com/crontab.shtml (cron crontab li/unix tools)
 [Discover] System Administration Guide: Advanced Administration http://docsun.cites.uiuc.edu/sun_docs/C/solaris_9/SUNWaadm/SYSADV2/p61.html (crontab)
 [Discover] Jcrontab http://www.jcrontab.org/index.shtml (java timer programming cron)
 [Discover] How to use crontab for scheduling jobs ? http://unixarticles.com/articles/69/1/How-to-use-crontab-for-scheduling-jobs-%3F (crontab)
 [Discover] Pseudo-cron.php - use cron jobs just with PHP! - bitfolge.de http://www.bitfolge.de/pseudocron-en.html (php cron programming tools)
 [Discover] Introduction to UNIX cron and at Utilities http://www.rahul.net/raithel/MyBackPages/crontab.html (unix at linux cron)
 [Discover] CRONTAB Tutorial | LinuxWebLog.com http://www.linuxweblog.com/node/24 (tutorial crontab)
 [Discover] TechBlog - How to: Schedule tasks on Linux using crontab http://kevin.vanzonneveld.net/techblog/article/schedule_tasks_on_linux_using_crontab/ (tutorial linux crontab unix)
 [Discover] cron - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Crontab (tutorial reference cheatsheet crontab)
 [Discover] Scheduling recurring tasks in Java applications http://www.ibm.com/developerworks/java/library/j-schedule.html (java timer task ibm)
 [Discover] Koders Code Search - tab.c - C http://www.koders.com/c/fid516D3283E69E72E383A1377649B0B12028D2CED8.aspx?s=tab_reschedule (crontab)