I added support for del.icio.us to whoisi this evening. Let me know if you see problems.
Update: There are still server throttling issues so sometimes adding del.icio.us urls doesn’t work. Still working on making the polling stuff smarter about that.
Works great for me! Whoisi is pretty sweet. Do you have any intention on having it crawl? Or is it all user submitted?
It’s all user-submitted for now. I like using crawling (sort of?) to make user suggestions. i.e. pull down foaf + comment data. But that’s very different than what you’re suggesting, I think.