Open directories give users advantage to search millions of directories, submit articles to directories, and so on. You have many options with open directories online.Some of the popular open directories are Google, Yahoo and so on. You can use open directories to get links, such as back links, incoming links and more.Open directories also includes ODP (Open Directory Project), which some users refer it as DMOZ. (I.e. directory mozilla.org) which is the origination of open directories. Open directories have multilingual directories with open content available to users. The content on the WWW (Word Wide Web) links to Netscape. Volunteers or people in the web community care for the directories.Some open directories are updated regularly, while others are not. Editors who volunteer or from the community fall short of updated every singe directory online, since there are millions of them.Who discovered open directories? The founders of open directories or ODP include Rick Skrenta responsible for Gnuhoo, and Bob Truel.About open directory transitions: Gnuhoo started in the late 90s. Slashdot articles however made remarks that the directory was not in since with spirits of free software’s, which GNU projects and GNU, Richard Stallman’s made objections to Gnuhoo. It was later renamed, NewHoo. This brought Yahoo into the picture, which rejected the name NewHoo. It was changed once more to ZURL. Before the name was changed again however, Netscape encouraged ZURL to start up the site as open directories project. (ODP) This change brought AOL aboard, which started up Time-Warner open directories.Open directories started growing thereafter. Netscape took the open directories off in the 90s by assuming stewardship, which ODP incurred over 100,000 different URL indexes. By the last part of the 90s, URL indexes created by open directory projects soared into the millions. Speculators thought that the increase left Yahoo open directories behind. Currently there are more than 3.9 million open directory listings on the web.The open directory project has main servers, which when the systems failed at one time caused catastrophic suffering. It was the mid month of December before the directories were working. The open directories send publications weekly to thousands of web sites and dump RDF. The open directories are currently configured on Intel’s base servers. The purpose is to avoid any other failures to the system.Open directories are popularly used by webmasters, users, and anyone in Internet business. The open directories allow internet businesses to collect relevant links to their websites. This is one of the top strategies used to promote businesses.In addition, the internet businesses can submit articles to the directories, which the public can view. Another way that internet businesses market their web pages, thus if you are searching for marketing solutions, go to the open directories and explore more now.