6. Long Tail The future of business is selling less of more The Long Tail was popularized by Chris Anderson in an October 2004 Wired magazine article, in which he mentioned Amazon.com and Netflix as examples of businesses applying this strategy The distribution and inventory costs of businesses successfully applying this strategy allow them to realize significant profit out of selling small volumes of hard-to-find items to many customers instead of only selling large volumes of a reduced number of popular items. The total sales of this large number of "non-hit items" is called the Long Tail.
8. Wisdom of crowds Google ha una capacità di storage di 5 petabyte di dati 5.000 terabyte (la biblioteca del congresso = 20 terabyte di dati) 5.000.000 gigabyte Necessità di una guida
9. Gli attori Persone Infomediari Aziende The Wisdom of Friends (and Others Too)
16. I motori di ricerca “ A search engine is an information retrieval system designed to help find information stored on a computer system, such as on the World Wide Web, inside a corporate or proprietary network, or in a personal computer.”
17. Dizionario Directory sono spazi gestiti da personale umano che seleziona e cataloga i siti web, alcune sono gratuite altre a pagamento (pay per inclusion), è importante inserire il sito nelle directory perché alcune offrono vantaggi nel posizionamento anche se il loro valore si è ultimamente affievolito. Da ricordare Yahoo, Virgilio, Arianna e Dmoz. Motori di ricerca sono quasi sempre sistemi automatici in cui uno spider percorre un link e cataloga informazioni in merito ai siti web. Social Network si tratta di spazi comuni in cui spesso vengono segnalati (linkati) siti, blog e spazi web, spesso utilizzando meccanismi di aggregazione automatica come i feed.
18. Come è fatto un motore GLI SPIDER CI GUARDANO L’ALGORITMO CI VALUTA IL MOTORE CI POSIZIONA PageRank is a link analysis algorithm, named after Larry Page[1] and used by the Google Internet search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set. The algorithm may be applied to any collection of entities with reciprocal quotations and references. The numerical weight that it assigns to any given element E is referred to as the PageRank of E and denoted by PR(E).
19. Il pagerank Mathematical PageRanks (out of 100) for a simple network (PageRanks reported by Google are rescaled logarithmically). Page C has a higher PageRank than Page E, even though it has fewer links to it; the link it has is of a much higher value. A web surfer who chooses a random link on every page (but with 15% likelihood jumps to a random page on the whole web) is going to be on Page E for 8.1% of the time. (The 15% likelihood of jumping to an arbitrary page corresponds to a damping factor of 85%.) Without damping, all web surfers would eventually end up on Pages A, B, or C, and all other pages would have PageRank zero. Page A is assumed to link to all pages in the web, because it has no outgoing links.
36. SEM: il pay per click Utente che ricerca informazioni
37. SEM: il pay per click Utente intenzionato ad acquistare
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39. L’importanza del copywriting Utente intenzionato ad acquistare Fonte: fradefra Italian Shoes Vendita on-line di scarpe rosse di ogni genere. Sandali, stivaletti, scarpe aperte e chiuse, infradito e accessori per la pulizia… http://www.italianshoes.com Scarpe rosse da Italian Shoes Compra da noi le scarpe rosse dei tuoi sogni. Nessun uomo ti resisterà e le tue amiche ti invidieranno e tutti si gireranno ad ammirare le tue gambe… http://www.italianshoes.com
48. Contenuti e Rank Utente intenzionato ad acquistare Great Content ≠ Great Rankings The web's link graph isn't a meritocracy - like everything else in life, it's a popularity contest . Those who find the best ways to distribute, promote and market their works to the audience most likely to share it are going to succeed much more so than just the "great content" producers.
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51. Tweet for search Danny Sullivan: If an article is retweeted or referenced much in Twitter, do you count that as a signal outside of finding any non-nofollowed links that may naturally result from it? Google: Yes, we do use it as a signal. It is used as a signal in our organic and news rankings. We also use it to enhance our news universal by marking how many people shared an article http://searchengineland.com/what-social-signals-do-google-bing-really-count-55389
53. Misurare la reputazione Utente intenzionato ad acquistare http://marketingarena.it/download/ Brand reputation : la reputazione di marca è l’insieme delle opinioni positive o negative espresse da un gruppo di persone in merito ad una marca o prodotto di un’azienda. In un contesto di rete la brand reputation può essere influenzata anche pesantemente dalle azioni degli utenti.