Launched rss2json last week with a friend. Just a tiny project to give me an excuse to work with google app engine, and spend some time using python.
It will let you embed a RSS feed into your site or blog. You can customize the look with your own CSS, or completely change the information displayed if you write some custom javascript.
You can see it in use to display rsvps here.
There are a couple of other sites out there that do something similar, but I didn’t think they were as flexible or easy to use. And, we have a couple more cool ideas in store for v2….