Well SEO basically means optimizing your website .optimization basically include Onsite and Offsite factors.
SEM means Marketing of your website.
It basically incudes, placing ads for your website in different different website to promote your websites etc.
SEO is a subset of SEM.No SEM campaign is complete without SEO.SEM is more expensive and quite possibly more targeted, while SEO's purpose is to obtain better free search listings.
SEO- for increasing the quality or volume of traffic
SEM-is a form of Internet marketing that seeks to promote websites by increasing their visibility in search engine result pages
Many people misunderstand the goal of search engine optimization as distinct from search engine marketing. Applying SEM expectations to SEO can lead to significant frustration and disappointment.
This month's newsletter will address the distinction between search engine marketing and search engine optimization. We've written a lot about SEO in the past so this month we'll focus on search engine marketing. The goal is to clarify proper expectations for SEM compared to SEO so that you can engage in the most appropriate approach with the best possible results.
Search engine optimization is utilizing tools and methods in making your site top ranking in the results of search engines. Getting yourself in the first page and better yet in the top half of the page will ensure that your site will generate public awareness of your site’s existence and subsequently generate more traffic, traffic that could lead to potential income and business.
And SEO is a subset of SEM, which is a form of Internet marketing that seeks to promote websites by increasing their visibility in search engine result pages.