Media, Information and Technoculture 3010E Lecture Notes - Lecture 2: Google Search, Google Shopping, Adwords

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The birth of the world wide web: 1990: tim berners-lee de(cid:448)elops the (cid:449)o(cid:396)ld(cid:859)s fi(cid:396)st www (cid:271)(cid:396)o(cid:449)se(cid:396, 1993: release of mosaic: the first widely-available web browser with a graphical user interface, 1994: first genuine search engines, alta vista, webcrawler. Web directories: designed and maintained by human beings. Web search engines: systems whereby automated agents location and index web sites through hyperlinks. Four parts of the search engine: crawler: the program that finds the web pages, once they are found they are put into an index. Identify itself as a crawler: visit sit (cid:396)egula(cid:396)l(cid:455), (cid:271)ut (cid:374)ot e(cid:454)(cid:272)essi(cid:448)el(cid:455), p(cid:396)efe(cid:396)a(cid:271)le du(cid:396)i(cid:374)g the site(cid:859)s slo(cid:449) pe(cid:396)iods, alert the home site of problems such as broken links, obey robot. txt. and no follow orders. Kelly, beginning of chapter 1: (cid:862)(cid:374)atu(cid:396)al i(cid:374)(cid:272)li(cid:374)atio(cid:374) to(cid:449)a(cid:396)ds (cid:272)ha(cid:374)ge(cid:863, upgrade arms race, more like a living ecosystem, endless upgrades, (cid:862)all of us-every one of us- will be endless newbies in the future simply trying to keep up.

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