Many people have heard of social bookmarking. This allows you to store all your bookmarks online through various services like linkaGoGo and del.ico.us. In each case the user can create tags and other ways of identifying and sorting bookmarks into groups. del.ico.us uses tags and tag bundles to sort the bookmarks while linkaGoGo uses different folders to store them, some of which can be shared with the wider community and some kept private. This allows you to see and manage your bookmarks anywhere in the wold, and see what other people may have considered useful about the same subject.
The Socailizer ‘allows you to easily submit a link to several social bookmarking systems. Instead of having a link to each social bookmarking website, you have a single link to all of them.’ This is a free service from eKstreme.com, and makes it much easier for webmasters to allow users to add bookmarks to their system of choice. Panoramic Earth intends to be adding bookmarking icons on some of the pages shortly.