low cost conference calls
Indexing is simply the work the Search Engine Robots do to give you information on low cost conference calls. How does an indexing robot decide what to index? Well they just send their Bots or Spiders to crawl the web looking for low cost conference calls on web sites.
If an indexing robot finds a document that contains low cost conference calls, 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 low cost conference calls and keep them in their database. Others will look for low cost conference calls in the first few paragraphs, or parse the entire HTML and index all words.
