tipos de negocios que existen por internet

B2C (business to consumer):
amazon.com, bestbuy.com, Staples.com, Dell.com, Zappos.com, Walmart.com, Target.com, Talbots.com

B2B (business to business):
ariba.com, soldouteasy.com, alibaba.com, made-in-china.com,tradeKey.com, importers.com, ec21.com, sugoo.com, tpage.com

C2B (consumer to business):
froogle.com, priceline, kello.com, google adsense

C2C (consumer to consumer):
youtube, facebook, ebay, twitter

B2E (business to employee):
Engineer.com (mas de 1000 usuarios entre gerentes e ingenieros), bank.com (mas de 40.000 empledasos)

B2G (business to government) y C2G:
b2gmedia.com, metso.com

Articulo interesante
http://www.leidykla.eu/fileadmin/Vadyba/12-13/14-17.pdf