My latest web application is up at www.spellingthing.com. I’ve never been great at spelling. Actually, I was pretty terrible at it in school. Over the years, I’ve been slowly trying to work on learning words as I notice that I’m making mistakes (thank you spell checkers!). SpellingThing is designed to help people focus on the words that they have trouble with until they’ve gotten it. You can add your own words to learn, or let the website choose words for you.
I’m trying to get people to beta test it because it’s new to the public and I’m looking for feedback, suggestions, complains, or anything. Eventually, I’d like to charge for access to premium features, but only if people find it valuable. For now it’s completely free, so please check it out and let me know what you think.