I just gave the finishing touches to my first public wordpress plugin: Delicatessen. Sounds yummy, doesn't it?
If you're a veeeeeeeery curious person (just like me) you'll love this plug-in. It should satisfy your innermost desires and much more. Well, not that much but at least it will allow you to find who's linking you in del.icio.us, since there's not an easy way of finding that information in del.icio.us itself.
Hope you enjoy it!