1.4 Chaper 1: Key points

• The Internet is used to share information and to communicate;
• The number of websites created increase everyday;
• Websites are used for diverse purposes (making advertisement, expressing personal opinions, running businesses…);
• 25% of young people Internet users aged of <34>
• In a decade we skipped from an Internet built by a thousand of individuals to one made by millions;
• Search is the second biggest activity made on the Internet after e-mails;
• Search engines are so far the only way to crawl the Internet properly;
• The Internet is our main information provider;
• On the Internet, flows of information from businesses are mixed up with the ones of individuals, it can then be subject to confusions;
• Search engine are the origin of those confusions, it seems then critical to analyze how those technologies are working and what are the consequences of their use;