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