» The search engine marketing dictionary
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V
Vector Space Model (see Term Vector Database)
For example, Business.com would be a B2B vertical search engine, and YouTube would be a video based vertical search engine.
Many social news sites and social bookmarking sites also lead to secondary citations.
Using a virtual server can save money for smaller applications, but dedicated hosting should be used for large commercial platforms. Most domains are hosted on virtual servers, but using a dedicated server on your most important domains should add server reliability, and could be seen as a sign of quality. Dedicated servers usually run from £100 to £500 a month. Virtual servers typically run from £30 to £50 per month.
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