The latest Google patent application mentioned the use of user data such as bookmarks for help in determing ranking. In light of that, SEOs are now adding Bookmark Us scripts to their sites. While it may or may not have much of an impact on SERPs, it never hurts to remind your visitors to come again, and if it does add a little weight for SEO, even better. So, if you too would like to jump on the "old becomes new again" bookmark craze, I would suggest using the cross-browser bookmark script located here. Oh, and be sure to get your keyword phrase in there! 😉