Hal, if you have a discord account, and have been assigned to a 'Thon Team, that Team should appear in your available discord channels.
Check with your Team regards where to find unsourced profiles for the area covered. Otherwise, you can probably work on unsourced from other areas as well. (All teams allow for this, even if their main focus is a specific region.)
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AmyLynn, my understanding is that the tracker is turned off for everything except the Source-a-Thon, and will be returned to normal after the 'Thon ends on Monday.