HotBot revisit the indexed web sites every three to four weeks. It also has a powerful query interface to enable users to hone in on specific enquiries. A once powerful search engine. At present WebCrawler does not accept new web site submissions and seems only to re-index the existing web sites in its database. Directories - Web sites are categorised and presented in a directory structure.
Most directories allows only one submission per web site.
It is therefore important that the submission be done with care. There are numerous categories and sub-sub categories which can leave the average web searcher in the cold. Nevertheless Yahoo remains the standard for directory searches. Both keyword and description meta tags are used. It removes redundancies, and clusters the results into understandable groupings.