Marketing of Search Engine

In Web marketing, I am not highly proficient but I am truly keen to learn better regarding this. To great heights, there is someone who told me that this strategy could enhance a site. This can affect the online presence of a website. Is there a difference between amidst SEO and SEM? Can anyone elaborate the information to me about this topic? I will be happy to have the guidance of any person that is open to assist me. I desire to learn from the experts’ opinions that are available. I want to study more about marketing of search engine as well as choose to talk about the similar matter.search engine marketing is now very important part of a particular website .

Search engine marketing is the act of showcasing a business utilizing paid ads that show up on web crawler comes about pages (or SERPs). ... No other promoting medium can do this, which is the reason internet searcher advertising is so viable and such an incredibly intense approach to develop your business.