Search engine optimization is a methodology of strategies, techniques and tactics used to increase the amount of visitors to a website by obtaining a high-ranking placement in the search results page of a search engine (SERP) -- including Google, Bing, Yahoo and other search engines.

SEM

SEM (Search Engine Marketing) is the process of gaining website traffic by purchasing ads on search engines.

SMM / SMO

Search engine optimization is a methodology of strategies, techniques and tactics used to increase the amount of visitors to a website by obtaining a high-ranking placement in the search results page of a search engine (SERP) -- including Google, Bing, Yahoo and other search engines.

ORM

Online reputation management (ORM) means taking control of the online conversation. Its techniques and strategies ensure that people find the right materials when they look for you on the Internet.