Google Search

How do search engines differ:

• • Web Crawler Search Engines: Use spiders or bots to travel to each page and gather key words the on the page and adds it to its database. The database is than searched.

  • Meta Search Engines: search engines that search search engines for results. These search engines search indices and directories of other search engines for their  results.

  • Directory Search Engines: human created directories of web content

  • Hybrid Search Engines: a combination of both crawler search and directory search engines.

  • Question Answering Engines: search by asking a question in natural language

Video:  How Search Works

Questions to answer:

Demystifying Google Search: links to 26 short videos on "How to" search using Google