"Channels" is a place on Puzzler's Paradise, where all WPD players can show all their puzzles. Also the puzzles you have not played during WPD, or puzzles you have in stock. Only active supporters have access to this place. It is a goody for people who support the website of World Puzzle Days and there's no one single cent more to the usual annual entry fee we have for participation in the WPD. So it is a free place for all WPD players. No matter if you paid your entry fee by yourself, or if it has been paid by a sponsor.Your membership expires always on December 1 of every year, in case you do not renew your participation on WPD. So players leaving the WPD by any reason make free space for new players.