Directories provides listings of sites catagorized by subject. Some directories specialize in only one subject or field. Quite a few of these sites will take your listing for free while others are invite only and some will take subscription fees or a one time submission fee.

There are only two directories that are heads and tails above the rest.

Best of the Web!

DMOZ or the Open Directory Project

• 123World.com, vacations, hotels, resorts, inns, vacation packages, travel packages, vacation rentals, attractions, show tickets and lots more
• 1st-Spot.Net, generic directory, charge for submissions
• 7in1web.com, old school. cannot find a place to submit to
• Achoo.com, server not found.
• Allwebdirectories.com, a directory of topic-specific directories (many spam directories)
• Arielis.com, $25.00 submission, and a free Top Sites listing
• Best of the Web Directory, great directory, $49.95 annually recurring review fee or $149.95 one-time review fee
• Blakkat.com
• Canadopedia.com, its goals and operations serve only the interest of Canada and all Canadians. Bilingual.
• Dcpages.ari.net, Washington DC Visitors and Community
• Directory.net, based on the Open Directory.
• Fitnesspros.net, fitness based. Mainly spam.
• Fly2net.com, pay per click search engine
• Galaxy.com, paid listing, $9.95 for review w/in 60 days
• Gimpsy.com, organizes sites by service the site provides. free and paid. accepts adult with age verification. submit page
• Imarvel.com, other partner sites, has a email suggestion area
• GoGuides.org, nice site, $69.95 one time fee per listing.
• Jayde.com, free submission, but you opt into their email network
• JoeAnt.com, US$39.99, but a good reputable directory
• Josh.nu, free submission but does not look like any new for a while (2002, yikes!)
• www.Lifestyle.co.uk, paid submission for UK as well as 180 day free submit
• Linkopedia.com
• Myallfish.com - seems to be quite broken - Jan 2007
• Onemission.com
• Patient.co.uk
• Patient.co.uk (topics)
• Peekaboo.net
• Phatoz.com
• Pharos-search.com
• Psychnet-uk.com
• ProudlyCanadian.net
• Ranks.com
• Re-Quest.net
• Rex.Skyline.net
• SeekOn.com
• Smartlinks.org
• SoMuch.com
• SurfPoint.com
• SuperPages.ca
• SunSteam.com
• Townnet.com
• Travelbritain.co.uk
• travelbritain.co.uk
• Wwwomen.com
• Webdirectory.com
• Webworldindex.com
• Whatuseek.com
• Yakeo.com

Here is a list of link trading sites, they are directory based, and of varying quality

• Link Metro
• Link Market
• 123ExchangeLinks
• All Links
• Spocka
• Infowizards
• Linkalizer
• LinkExchanged!
• Links-pal
• LinkPartners
• LinkStrategy
• Search Engine Optimization
• SearchPole Web Directory - Search
• SuperLinks - Link Exchange

Link directory apps and scripts

• http://www.phplinkdirectory.com/