It may sound like a new way to torment your friends using Facebook, but a widget that Vancouver-based DabbleDB just launched also strikes me as an interesting way of managing different tasks or parts of a project among a group of Facebook users. Not only can you create tasks and to-do lists for yourself, but you can create them for others as well — and then bug them until they’ve finished them. Here’s a link to the widget, and my friend Paul Kedrosky (whose venture firm has an investment in Dabble) has more here.