Search engine marketing of the payment settlement and an additional incentive to invest in paid advertising projects. Therefore, it is virtually impossible for advertisers with limited budgets to maintain the highest rankings in the increasingly competitive search market. Google's search engine marketing is one of the western world's marketing leaders, while its search engine marketing is its biggest source of profit. Google's search engine providers are clearly ahead of the Yahoo and Bing network. The display of unknown search results is free, while advertisers are willing to pay for each click of the ad in the sponsored search results. Paid inclusion involves a
Microsoft Academic Google Scholar, Web of Science, and Scopus for academic research purposes as well as citation analysis. Microsoft Academic Microsoft Academic is a free public web search engine for academic publications and literature, developed by Microsoft Research. Re-launched in 2016, the tool features an entirely new data structure and search engine using semantic search technologies. It currently indexes over 375 million entities, 170 million of which are academic papers. The Academic Knowledge API offers information retrieval from the underlying database using REST endpoints for advanced research purposes. The service replaces the earlier Microsoft research project, Microsoft Academic Search, which ended development