The primary goal of the spammers is to increase the search engine ranking for their client sites, in a process called "black hat search engine optimization (SEO)" or "Spamdexing".

垃圾信息散布者的主要目的就是提高其客户站点在搜索引擎的排名，这个过程被称为 “黑帽式搜索引擎优化（SEO）” 或 “垃圾索引”。

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Additionally, images are still not indexed directly by search engines, so using images for navigation is a search engine optimization (SEO) sin.

此外，图像仍然不能由搜索引擎直接索引，因此，使用图像进行导航不利于搜索引擎优化(search engine optimization, SEO)。

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Search engine Optimization (SEO) : Organic search engine referrals to the hotel website generate the most cost-effective bookings for any hotelier.

搜索引擎优化(SEO)：自然搜索可以为酒店网站带来最符合成本效益的预订。

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With Google now as much a verb as a company name, search engine optimization (or SEO)--the process of increasing a site's odds of ranking high in the search stacks--is a key consideration for any e-commerce player.

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Web.com offers this assistance through a subscription-based service that offers Web site design, search engine optimization (SEO), lead generation and Web analytics.

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