Welcome to TF2Maps, we hope you enjoy your stay! The cafe is down that hall, first door to the left. We serve free breakfast each morning from 6 am to 11 am. Biscuits are served on Tuesdays.
Make sure to join the steam group (
http://steamcommunity.com/groups/TF2Mappers ), and hang out in the group chat with all the cool kids!
When your map is ready to be tested, you can add a download for it by going to the downloads section of the forums. Tell us a little about your map and post a couple screenshots so we can get the general feeling of what it is. Then join the steam group chat, and use the bot to add your map to the imp list. Or if there is a gameday thread (which have been pretty scarce recently), you can post it to there.
Also, happy new year!