Best SEO Links and Business Contact Bookmarking article. submit website and boot search engine traffic. Social bookmarking sites have become increasingly popular these days as people tend to be more open to sharing their likes to either friends, family or even to the public. Bookmarking is simply tagging your favourite sites and sharing them to others on the web. A social bookmarking site allows those websites you like to be tagged, categorized and organized. These bookmarked sites can also be used by others to add to their compilation and again, share with others.