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Bingo. Hopefully we're also the people you describe in the latter part. :)

When I try to subscribe with my email, I get to this page here: http://skillsapp.com/subscribe/ which is blank, you might want to look into that. :)

Happening with FF 3.6.12 and Ubuntu.

Ugh, looking into it.

Do you have JS disabled?

Yes, JS was disabled. With JS enabled there's no blank page. :)