Search Engines have automated robots (spiders) that index web pages once they are cued by the submission process; they also go out on the www and index pages without being cued by a submission. Some spiders index only index the page submitted to them; others request only the home page url so their spiders can follow the links through every page of the site. They are all set up with different algorithms. Pages are easily dropped due to updating their databases, spiders visiting when servers are down, etc.

Direct Hit is a popularity search engine, the ranking of sites is based on the amount of time users are spending at the site as well as frequency of visits and other measurements. The orange figures represent how popular the site is.

Inktomi listings can be achieved by submitting to the HotBot search engine and Canada.com to list with Inktomi. You want to be listed with Inktomi as they feed others, especially the secondary search results for Yahoo.

How engines and directories feed the search engines:
Inktomi engine powers many search engines, sometimes for secondary results when the search results are not found in main search engine results.

Re-submission to search engines:
As a general rule wait two to four weeks before re-submission to directories and search engines.