I'm running a session during which I need to get files off a bunch of programmers fairly regularly. Ideally this would be done using something web-based, without people having to sign up for accounts (although I'm happy to). So for example, I could give people a URL and password and they'd upload their files via their browser.
I tried setting up an FTP server for this, but couldn't manage to connect to it (probably due to firewalls), so I think that's out. Even if I do get it working, I think it's going to be too difficult for everyone to get access.