Contest and Events Calendar
http://www.arrl.org/arrl-dx
http://www.agcw.org/index.php/de/contests-und-cw-betrieb/qrp-contest
http://www.rdxc.org/asp/pages/rulesg.asp
http://www.bartg.org.uk/contests.asp
http://www.agcw.org/index.php/en/contests-and-cw-activities/vhf-uhf-contest
http://jidx.org
http://www.erau.ee/index.php?option=com_content&view=article&id=114&Itemid=91