Some time in the next week or so, the Blogathon people will be sending out e-mail reminders to you about your pledge, with a link to the ERD giving page. That’s it. Nothing is being automatically deducted, no actual bill from the ERD being send — heck, the ERD will never know that you pledged, and if you never send them (or anyone) anything, nobody will ever know.
Except, of course, you. 🙂
If you want to get a hop on the process, or look at your (many) options, you can go here. There are various simple donation funds, pages with corporations that do matching gifts, and lots of stuff under “Gifts for Life” (things like giving a goat, etc.) — you can even buy “Bishops Blend” coffee.

The direct donation page is here, and it’s easy-peasy to use. It also includes a snail-mail address you can use if you prefer to send money by Post rather than over the Net (there’s even a Phone option).
Thanks again for your help and support.

Well done, I wish I had been around to watch your postings. 🙂
I know you were there in spirit. 🙂