Online social networks are able to provide free services, mainly because of the advertising in their virtual space advertising requires itself is one of the most important building block for any social network. Facebook's primary source of revenue, online advertising business that the company currently has three 3.1 per cent market share of the overall online advertising market, but social networking sites are recognized as too commercial or disturbing to commercial spam, it is a rich man's son.The negative impact is grown for both advertisers and Web sites of its own, so it is important that users accept commercials as part of a social networking Web site. The financial capabilities of the Web site following these online is based on the belief that advertisers have a central performance.
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