Difference betwen SEO, Internet Marketing and Search Engine Marketing

[geetika]

Internet Marketing: It is a comprehensive process by which a business uses it's website to promote it's goods or services on the internet, encompassing everything from search engine friendly website design to on-page search engine optimization to off-page marketing and promotion strategies.
Search Engine Optimization (SEO): It is the optimization of various factors of the individual pages of a website, in an effort to make the collective pages of the site more appealing to the search engines and therefore more likely to rank well within the search results for a particular keyword or phrase.
Search Engine Marketing (SEM): It includes variety of strategies that may be employed to promote a website on the internet and within the search engines, including the process of building inbound links, directory submissions, internet branding, pay per click and social media marketing to name a few.
So it is most important to opt the best internet marketing firm for the SEO of your website.

[mohit]

SEO is a free srevice and part of internet marketing but SEM is include paid service .

[damponting44]

The difference between SEO and SEM is simply that Search Engine Optimization is part of Search engine marketing or Search marketing as it is widely known. Both processes aim in increasing visibility in search engines. ... It involves other methods that can get you more search engine visitors like PPC advertising.

[fayeseom]

Search Engine Optimization (SEO) has traditionally been thought of as a component of the umbrella term, Search Engine Marketing (SEM), encompassing both paid AND organic tactics. Today, SEM is used to refer exclusively to paid search. According to Search Engine Land, Search Engine Marketing is “the process of gaining website traffic by purchasing ads on search engines,” while Search Engine Optimization is defined as “the process of getting traffic from the free, organic, editorial or natural search results on search engines.”

While SEO is the technical side filled with keywords, links and page content, Internet Marketing is the more human aspect of the two platforms. In fact, Internet Marketing plays a huge role in a company’s success since it focuses primarily on interaction with people through article marketing, video marketing and social media. In fact, never before has social media played such a significant role in a company’s success as it does now. Through websites, such as Facebook and Google +, a company can freely extend its reach and market its product in a matter of seconds.

So, rather than viewing SEM as an umbrella term encompassing SEO, it’s more accurate to view SEM (paid search) and SEO (organic search) as separate entities to use as part of your Search Marketing arsenal.