SEO is about making your website or blog appeal to the search engines. If they are unable to find what they are looking for then they cannot build up a list of the things they need to know about and then use it to match against a search someone types into Google; for instance.
SEM involves promoting an article to particular places like web directories, email campaigns, industry forums or by asking friends or linked businesses to add a link from their website or blog to yours.
Some tips and tricks for beginners:
- Understand how search engines work. This is the most important thing when it comes to SEO.
- Once you have understood how search engines work then optimize your articles and web pages for search engines.
I am sure by now you have a complete understanding about SEO and as well as SEM.