Any possibility in the future(@nick:I know you have your hands full) of a external link toolbar so when a user clicks on an external link you have and option vote, return to site or maybe a try a random link from the site or a random link from the catagory you were viewing initially. Obviosely it should be able to be styled and potentially a ad placed on the toolbar as well. Another idea would be the ability to comment straight from the toolbar. Pligg has a similar module but I believe its funtion are cosmetic at this stage and not fully implemented.I'm not sure if it can be used as a starting point because I know the pligg and hotaru systems are completely different. You'd probably want users to be able to close the toolbar if they don't want it in the way and potentially a option in the user settings to disable it.