What is SEO & How it differs from SEM?
 

While some people use SEO and SEM interchangeably, SEO (search engine optimization) is actually a part of SEM (search engine marketing).

SEO refers to the process of using on and off page factors (typically free) to get your web pages ranked for your chosen keywords in order to get more search engine traffic to your sites. SEM takes it a step farther to include using paid search engine listings and paid inclusion to get more traffic to your websites.

SEO is a technique which help search engines find and rank your site higher than the millions of others site in response to search query.SEO is a subset of SEM

SEO is the process of using on and off page factors (usually free) to get your website ranked for your keywords to get more search engine traffic to their sites. SEM goes one step further by including the use of paid listings and search engine paid inclusion to get more traffic to their websites.

seo is nt a paid service n sem is a paid service.

SEO stands for search engine optimization in which websites is configured with different keywords that is co-related to your product or services.
SEM uses SEO, PPC,social network marketing,traditional online marketing, and article marketing tools to optimize your sites visibility on search engines.

Web optimization is really a approach that really help search engines come across and also rank your web site above the a lot of other folks web site inside respond to lookup issue. Web optimization is really a subset associated with SEM.

SEO is use to generate more traffic. It is a kind of technique for traffic generation while SEM is the marketing procedure and SEO comes under it.

yes you are right i agree with you nice answer.
in my view SEO is free and SEM is paid.

Re:
 

Hi

SEO is for page ranking where SEM is for traffic on your site.

SEO is a huge concept that basically deals on website optimization while SEM is a subject under SEO which specific role is for internet marketing.

seo is the collection of activities, but sem is the part of seo.