SEM is a much broader term than SEO, and actually includes SEO as one of its techniques. SEM is all that a company can do to advertise itself on a search engine, including paid inclusion and other ads. Search engine marketing (SEM) is the act of marketing a website via search engines, whether by improving rank in organic or natural listings, paid or sponsored listings or a combination of both. SEO - PROS 1> Organic listings are a trusted source of information, believed to be unbiased and indexed solely by the automated methods of an objective third-party 2> Natural search traffic provides a steady stream of traffic over time 3> Costs are frontloaded; once pages are optimized for organic search, low ongoing maintenance fees make it cost-efficient for marketers on a limited budget SEM - PROS 1> Paid traffic comes with a measure of predictability, allowing marketers to forecast both volume and cost-efficiency for relevant metrics 2> The free-market bidding system offers full access to a target audience and the opportunity to scale campaigns and pursue them aggressively, creating synergies with sales promotions 3> Paid traffic can provide a boost to site volume when most needed Social media optimization (SMO) Social Media Optimization is the methodization of social media activity with the intent of attracting unique visitors to website content.
The basic difference between SEO, SEM and SMM are... The best and cheap method is Search Engine Optimization, once your site will start ranking with related keywords you'll get automatic Organic results, for which you need not to pay any cost for clicks and all, second is SEM in this paid advertisement, you have to pay specific amount of money for a single clicks when user click on your display ad or you'll get money by offering permission to Google ad display network. last one is SMO which is basically a Social media marketing, Via SMO you'll get referral traffic which is very less but important once users read your post in any social networking sites and visit your sites it's comes under referral traffic.
SEO is the process of improving ranking in search engine results. SMO is social media optimization. It is a great technique by which you can get more traffic and business for the website. Search engine marketing is a form of Internet marketing through which we promote websites by increasing their visibility in search engine by paying to the search engine.