4. Algorithm : a set of rules used for solving particular problems. The algorithm--------Page Rank
5. The algorithm--------Page Rank How many links and the quality of the linking sites Deliver more relevant and informative results most visible result = High PageRank score More users mean more queries
11. Industry competition Companies compete for gaining market share Microsoft introduce new system with its own algorithm Microsoft and Yahoo deal in 2008
12. Google advertising- AdWords apply algorithm to advertising program Pay-by-click / cost-per-click scheme Display advertising that most relevant and useful Distinct itself from other competitors