Hello everyone a few days ago I was discussing about how to get updated with new social bookmarking site and someone told me that I should use social bookmarking footprints. I never heard about this one. I even Google it and got the definition that with this you can stay updated with new social bookmarking sites. But I do not know how to use them exactly? So I want to know that what exactly are Social Bookmarking Footprints and how to use them.