Prepopulating Social Networking Profiles
Danny Sullivan also make an excellent point in an amazing post about mining the web’s socially tagged links, with a great idea that Vanessa Fox came up with: (Danny is referring to mining xfn data to work out the relationships and prepopulate ‘friend’ and ‘me’ fields etc)
For example, you might sign up for a Twitter account, enter your blog URL, and Twitter could use the API to scan for anything connected to your blog (such as LinkedIn, etc.) and prepopulate fields. It’s something that Vanessa Fox wrote a long post about wishing could happen, and perhaps it really will happen.