I've made a thread for AARs, screenshots and videos here:
http://www.subsim.com/radioroom/showthread.php?t=214023
(includes a sneak peek of version 0.24)
Feel free to post mission logs, Let's Plays, anything!
In case you haven't noticed, the game saves a mission log ("mission_log.txt" in your Sub Commander folder) every time you play. This gives a summary of most of the important events which happened in the past game.