Shared Stuff is simple enough; users drag a “email/ share” button into their browser, and click it when they want to add pages to their Shared Stuff profile. Links can include an image, text extract, and/ or a user comment. The results can then be viewed directly, via iGoogle or RSS. An interesting addition is the option to use Shared Stuff to post links to other social booking sites as well, including Facebook Furl, Delicious, Reddit and Digg.
Friend can be invited by email, and bookmarks made by Gmail contacts using the service can be viewed as well.
Google Blogscoped suggests that bookmarks can be searched as well, via tag or url, although the feature wasn’t immediately evident on the site when I visited it.
Google already has a bookmarking service (Google Bookmarks) so it’s not clear whether this is an experiment that may later be rolled into that product, or is planned as a long term stand alone site. Overall it’s not the most amazing service; after all social bookmarking sites have been around for a long time and mostly one service appears the same as another, however with Google running the site it always has the opportunity to go well.