SEM is the wider discipline that incorporates SEO. SEM includes both paid search results (using tools like Google Adwords or Bing Ads, formerly known as Microsoft adCenter) and organic search results (SEO). SEM uses paid advertising with AdWords or Bing Ads, pay per click (particularly beneficial for local providers as it enables potential consumers to contact a company directly with one click), article submissions, advertising and making sure SEO has been done. A keyword analysis is performed for both SEO and SEM, but not necessarily at the same time. SEM and SEO both need to be monitored and updated frequently to reflect evolving best practices.
Search engine optimization (SEO) is the process of affecting the online visibility of a website or a web page in a web search engine's unpaid results—often referred to as "natural", "organic", or "earned" results. In general, the earlier (or higher ranked on the search results page), and more frequently a website appears in the search results list, the more visitors it will receive from the search engine's users; these visitors can then be converted into customers. SEO may target different kinds of search, including image search, video search, academic search, news search, and industry-specific vertical search engines. SEO differs from local search engine optimization in that the latter is focused on optimizing a business' online presence so that its web pages will be displayed by search engines when a user enters a local search for its products or services. The former instead is more focused on national or international searches.
For a small business, it is better to start with Organic SEO because aside from it is a low-cost investment, it will build your internet presence gradually and eventually have a solid foundation in your own niche – provided that you are doing the right way. It is not bad to invest in non-organic. You just have to make sure that you are investing on the right campaigns and not on the overly artificial ways to gain traffic and rank. Avoid investing too much on paid advertising and instead invest on creating relevant and useful content.
According to a Google study, paid search ads with an accompanying organic search result only occur 19% of the time, on average. Nine percent of the time a search ad shows with an organic ad in the top rank. What is surprising to many of us is the growth in incremental clicks when they appear together. Even the first organic ranking can benefit from an accompanying ad. Google’s results showed that 50% of ad clicks did not replace the clicks on the first organic search listing when the ads didn’t appear. The study found that 82% of ad clicks are incremental when the associated organic result is ranked between 2 and 4, and 96% of clicks are incremental when the brand’s organic result was 5 or below.
There is no one size fits all formula when it comes to social media marketing. For instance, a fast food chain restaurant could find a large number of people ordering food on their website with a single organic Facebook post, and on the other hand a medium-sized mobile app development company may see dramatic results with a promoted post on LinkedIn.
I think for agencies as far as how we appear in organic search ourselves, we are definitely going to need to leverage all 3 of the solutions you talk about and agencies who haven't branded their products/services are going to have to do that and are going to have to also employ branding strategies. In addition, we have to optimize for other search ares like you say in your point #2 and we must look at optimizing existing content for voice search and answers/featured snippets like you say in point #3.
Search Engine Marketing or SEM encompasses the steps taken to increase relevant traffic to your website, through higher rankings on search engines. Traditional SEM is made up of two processes: “organic” search engine optimization (SEO) and pay-per-click advertising (PPC) (or cost-per-click (CPC)). However, the field of SEM is a changing and expanding field thanks to constant new developments, such as:
Though a long break is never suggested, there are times that money can be shifted and put towards other resources for a short time. A good example would be an online retailer. In the couple of weeks leading up to the Christmas holidays, you are unlikely to get more organic placement than you already have. Besides, the window of opportunity for shipping gifts to arrive before Christmas is ending, and you are heading into a slow season.