for me SEO is all about Organic Optimization and SEM is about the sponsored results.
But I notice that this isn't the common way people talk about SEM.
If I check the definition of SEM on http://www.webopedia.com/TERM/S/SEM.html
it says;
Quote:
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SEM is often used to describe acts associated with researching, submitting and positioning a Web site within search engines to achieve maximum exposure of your Web site. SEM includes things such as search engine optimization, paid listings and other search-engine related services and functions that will increase exposure and traffic to your Web site.
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So according to this definition SEO is a part of SEM.
What do you all think is the right definition?
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