Search Engine Optimization
http://www.seoprofessionals.com.sg/services/search-engine-marketing/
There are many different types of meta tag, including one for keywords – but up-to-date webmasters rarely use it. Although keywords are the heart of any search engine optimization effort, the keyword meta tag has been so debased with spam-like abuse that today search engines ignore it entirely. Do not waste time packing the keyword tag; focus on more important areas.
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