http://www.lotsofthings.co.uk/tag/social-networks.htmlA social network is a service, usually web based in the form of a website, which allows many people to communicate and share information on a personal or corporate/business level. http://www.lotsofthings.co.uk/link/twitter-search-results-to-appear-in-search-engine-result-pages-(serps)-of-google-and-microsoft-bing.htmlTweets from the Twitter microblogging service will soon be appearing within the search engine results pages (or SERPs) of two popular website Internet search engines, Google and Microsoft Bing (previously Live search). This will move significant search engine optimisation (SEO) techniques towards the social networks and microblogging communities.