That's awesome. I like that you just came out with this when the others have posted...and that it only has 1 point! It's simple and to the point. I may not be your customer base but think the email is a great method of delivery. Especially if the mails were sent with some metadata in the message body that made searching for the mails easy. If you packaged it into a Chrome extension ( easy enough to make ) you could accept payment using the extension APIs and people could just click your extension's page action to save the page. It would be effortless. And a few seconds / minutes later, they'd get an email notification....this is giving me ideas! :) Anyway, I wanted to congratulate you and reach out since yours seems to me just as good as the others and it is perhaps not getting quite as much attentions as theirs. Good luck! :D
P.S I wanted to ask have you had much interest / use / payment for this? :);p
P.S I wanted to ask have you had much interest / use / payment for this? :);p