What is Search Engine Marketing ? On the Internet, a search engine is a program that searches for keywords in files and documents found on the World Wide Web. Search engine marketing is a way of advertising your products using the technology of the search engine.Search engine marketing capitalizes on the wide consumer audience that can be reached through the internet. Many business have realized the powerful marketing tool that the internet provides through search engine marketing. Everyone who uses the world wide web, utilizes a search engine. Search engines are automatically updated by special programs called “robots” or “spiders” that search the world wide web for new content and then report their findings to the database. There are many different web search engines and many different types of search engine marketing that can be available to your business.