In case you missed it, the "MarineTraffic AIS Station Operator Contest" for 2015 is on since March 1st and will run until December 20th, 2015.
All MarineTraffic registered users are eligible to take part in the contest as long as they are operators of an AIS station and contribute to the AIS data collection.
If you want to be part of the contributors' community, all you have to do is to add your receiving station! New stations that are created during the course of the contest can participate as well and compete for the prizes that will be awarded.
Depending on the stations' performance, prizes will be awarded to top contributors.
Every month the ranks will be updated and each station's individual ranking will be denoted with the respective badge on the MarineTraffic station's details page (you can search for all stations at any time).
During the competition, special prizes will be announced and will be awarded to the stations that did remarkably well!