The concept behind CardFile is not new. Put all of your information in, get an RSS Feed, supply that feed to your friends, and when you want to notify anyone of any changes in your data, just change it, and it will be fed into the RSS Feed (or e-mail) and everyone who subscribes will know about it.

But, what I like about CardFile, (which was just sold, prompting this post) is that you can make certain information available only to your closest friends (partial v. full profile). Also, you control who can subscribe to the feed, which is nice. I'm thinking that there is a social networking aspect that needs to be tapped by the company that bought the software, but I can't put it into words yet.

Speaking of social networking, why can't I get an RSS Feed new messages in Orkut? That would be pretty interesting. Then again, that would mean that Google would actually have to acknowledge that RSS exists as a medium for content delivery, and we know that's not going to happen anytime soon. They're to busy alerting me of new results in the top 20 results of a web search via e-mail, of which I messengered off to a colleague today, "Big F'in Deal"!!! [Library Stuff]