Setting Keywords properties
Many search-engine robots (programs that automatically browse the web gathering information for search engines to index) read the contents of the Keywords
meta tag and use the information to index your pages in their databases. Because some search engines limit the number of keywords or characters they index, or ignore all keywords if you go beyond the limit, its a good idea to use just a few well-chosen keywords.
Enter your keywords, separated by commas, in the text box labeled Keywords.