What's a roll20?
That's a question I never saw myself asking.
Roll20 is a system for playing tabletop RPGs online. It's free to use, and it includes dice-rolling, a grid map, digital tokens, GM tools, etc. I used it once to help beta a friend's game, but I've never tried running a game through it.
I'd do a one-time event, no way I can fit another steady commitment to an online comminity at this point.
I'd be interested in learning since I've never had that opportunity in real life. I am noob. Intimidating. Grr.
I can't commit to a steady game either; I've already got D&D going on at least twice a month. But I'd be happy to learn roll20 and teach a one-off game for the Blanketfort

If any of you are interested, PM me, and we can discuss details after I've had a chance to look at roll20.