major league baseball
Indexing is simply the work the Search Engine Robots do to give you information on major league baseball. How does an indexing robot decide what to index? Well they just send their Bots or Spiders to crawl the web looking for major league baseball on web sites.
If an indexing robot finds a document that contains major league baseball, it may decide to parse it, and insert it into its database. How this is done depends on the robot. Some robots index the HTML Titles that contain major league baseball and keep them in their database. Others will look for major league baseball in the first few paragraphs, or parse the entire HTML and index all words.
