For those who surf the Internet at public libraries and use different PCs to access the net, online bookmarking is recommended. Online bookmarking or what is popularly known now as social bookmarking, lets you save your bookmarks online for free. There are actually quite a number of sites that offer such services that you may find it difficult to choose which service to use. Using at least 2 online services is safe enough. This means saving all websites you want to save on the 2 different sites so that in case something wrong happens to one of them, you still have one site working to back you up.