PunchCard
A stand alone social bookmarking widget. Click on the *** link to try it right now, from your browser.
Keep in mind that this widget is quite old and its bookmarks are mostly obsolete now. Nonetheless, it perfectly works on its own side, even if it doesn’t really allows you to place a valid bookmark.
When trying it, just click on some marked holes on the PunchCard. Then close the bookmarked website that opens up, and you’ll see a hole where there was only a mark before 🙂 If you reload the page, you’ll see that the all holes stay where they were made.