The foonders haed ineetially leemitit the wabsteid's membership tae Harvard students; houiver, later thay expandit it taeheicher eddication institutions in the Boston aurie, theIvy League schuils, anStanford Varsity. Facebook gradually addit support for students at various ither varsities, an eventually tae heich schuil students as well. Syne 2006, onyane wha claims tae be at least 13 year auld haes been alloued tae acome a registered uiser o Facebook, tho variations exeest in the meenimum age requirement, dependin on applicable local laws.[8] The Facebook name comes frae theface beuk directories eften gien tae Unitit States varsity students.[9]
Facebook mey be accessed bi a lairge range odesktaps,laptaps,tablet computers, ansmairtphones oqer theInternet anmobile networks. Efter registerin tae uise the steid, uisers can creaut auiser profile indicatin thair name, thrift, schuils attendit an sae on. Uisers can add ither users as"friends", excheenge messages, post status updates andeegital photos, share deegital videos an airtins, uise varioussaftware applications ("apps"), an receive notifications whan ithers update thair profiles or mak posts. Additionally, uisers mey jyne common-interest uiser groups organised bi wirkplace, schuil, habbies or ither topics, an categorise thair friends intae leets sic as "Fowk Frae Wark" or "Close Friends". In groups, eeditors can pin posts tae tap. Addeetionally, uisers can complain aboot or block unpleisant fowk. Acause o the lairge vollum o data that uisers submit tae the service, Facebook haes come unner scrutiny for its preevacy policies. Facebook maks maist o its revenue fraeadvertisements THAT appear onscreen, mercatin access for its customers tae its uisers an offerin heichly selective adverteesin opportunities.[10]
Facebook, Inc. held itsineetial public offerin (IPO) in Februar 2012, an begoud sellinstock tae the public three month later, reachin an oreeginal peakmercat caipitalisation o $104 billion. On Julie 13, 2015, Facebook becam the fastest company in theStandard & Poor's 500 Index tae reach a mercat cap o $250 billion.[11] Facebook haes mair nor2 billion monthly active uisers as o Juin 2017.[12][13] As o Apryle 2016, Facebook wis the maist popular social networkin steid in the warld, based on the nummer o active uiser accoonts.[14] Facebook clessifees uisers frae the ages o 13 tae 18 as minors an tharefore sets thair profiles tae share content wi friends anerly.[15]
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