MarkItForLater is a simple service to track sites you don't have time to read now, but want to get back to later. It isn't shared bookmarking, your list of links is yours and yours alone (unless you choose to send a link to others). After a week on your list links fade away. Before a link expires you have the option to renew a link if you haven't had a chance to get to it yet. More info over here.

