Difference between SEO,SEM and SMO?

[adityapradhan]

Search Engine Marketing (SEM) is a form of Internet marketing employed by webmasters to augment a website's SERP with organic optimization and promotions. Often, SEM uses SEO to achieve

Search Engine Optimization (SEO) involves writing search-engine friendly (optimized) content to obtain a higher page rank. It thus allows companies to boost their online presence, and penetrate a greater market segment.

SMO stands for social media optimization. The purpose of SMO is to use social media to increase traffic to a website.  It uses a number of social media outlets and communities to generate publicity to increase the awareness of a product, service brand or event. It is useful to generate viral publicity.

Read more at - yelkotech.com/blog/sem-vs-seo/

[annarichart]

Actually, SEM is broader than SEO or SEO include SEM.
By using SEO, you can drive the traffic to your website and maybe increase the conversion rate.

[daral]

SEO is the endless tweaking of keywords and backlinks, mostly a guessing game due to opaque algorithms - often wasted effort chasing Google's whims. SEM is just paid ads, if you have money, you get traffic, but it's a black hole for budgets if you don't micromanage every bid and keyword.

SMO? That's the fluff-posting memes and hoping for viral shares while ignoring real business goals. Most companies get trapped chasing vanity metrics in SMO or burn cash on SEM without a clear strategy.