Search Engines vs. Directories

Before I even get into the process of search engine optimization, let's get back to the basics first.

What is a Search Engine?

• Huge databases that help people find relevant information on the Internet.
• Search engines rely on computer programs called "robots" or "spiders." These programs "crawl" across the web by following links from site to site and indexing each site they visit.
• Each search engine uses its own set of criteria “algorithm” to decide what to include in its database.

What is a Directory?

• Typically are categorial listings of websites that can be searched by a visitor.
• Internet directories generally do not use software programs.
• Compiled by humans who review and organize web sites by subject into categories.
  

Search Engines vs. Directories

• Search engines use robots
• Directories use people
• Top search engines have both robots and people
• Different factors are used for search engines than for directories

Seems simple enough you say. So, why do you need to know all of this? Well, you'll have to wait until tomorrow to find out!