phpLinks is a free and Open Source PHP script that allows you to run a very powerful link farm or search engine simulation. Features: full search capabilities, recursive multilevel site categorization, full referrer tracking, site reviews, site ratings, link validation, related categories, category searching, and search term tracking. phpLinks requires PHP 4.x, MySQL 3.23 or greater and uses sessions.

phpHoo3 is a Yahoo-like link management system. Its password protected administration mode allows you to: Approve, delete and edit new link suggestions, Disapprove and edit existing links, and Add new categories. Also features: automatic email on new links, improved security, simple template for html changes, and supports php3 and php 4.

ssLinks is a PHP script which allows you to run a database driven categorised links section on a web site - similar in structure to Yahoo or any other categorised links collection. Features include a full template system for easy customisation, comprehensive web based admin tools, user link submission for admins to validate, user ratings for links, search engine, highest rated / most popular links and more.

In-link is a powerful dynamic portal solution that allows you to run a complex web-directory, including but not limited to Links Directory, Business Directory, Classifieds etc. The engine is entirely template-driven, it features dynamic presentation of data and includes multiple customizable features. Features include: language sets, themes, user registration, link reviews and votes, modular support, custom database fields, configurable search, advanced reporting, validation checks, dead link reporting, a site map, data backup, CSV import & export and more. Supports unlimited Paid (Enhanced) Listing types.

INDEXU is a portal solution software that allows you to build powerful Web Indexing Sites such as yahoo.com, google.com, and dmoz.org with ease. Features: Paypal integration; Basic, premium, and sponsored listing type; discount price for longer paid period; advance template engine; search engine friendly url; google sitemap, rss, and google pr; advanced custom fields: editbox, textarea, dropdown, multiselect, radio button, image, file upload, and more.

Categorizator will allow you to manage a Yahoo style directory on your site. It can easily integrated with the design of your site. It includes an admin interface to manage categories as well as subcategories on several levels. The sites can be added either via the administration or by the visitors (the user-submitted links must be approved by the admin before appearing in the directory). Other features include: an internal search engine, a link click counter, voting system and links checker.

With Link Department you get a completely template driven link directory solution with static HTML pages. Fast and easy to use, featured listings, top lists, new links highlights, link thumbnails or banners, auto check link back to your site, links rating in one click, META tags for keywords and description and more. Installs in minutes with click-and-go web setup script.

ZINK is an easy to use Yahoo-style link indexing script with a search capability. Features include: Unlimited depth of subcategories, Unlimited number of categories and links, Case incensitive search of the links database, Multilanguage support (English, French, Russian, Spanish, Catalan,Turkish in v1.1) for the end-user interface. Visitors can add links & categories, Customisable header & footer, and Simple admin section.

LinksCaffe is a mySQL/PHP4 portal solution that allows you to run Yahoo-style directory on your web site. Admin features include: adding, editing, deleting, validating links, optional e-mail notification, creating or deleting categories. The look of the page is easily customized through header and footer and sytle sheet making. The side allows visitors to suggest their links, search site and report broken links. One counter is included. Very easy to install.

This project is a rebuild of the Link Conservatory from the ground up. The new twist is that instead of just links, lots of different kinds of content can be added. This is useful for building sites like Slashdot, or any other magazine-type site. Main features include: Content exists at nodes which are connected together in a tree with pathways; Types of content include URLs, threaded discussions, linear discussions, polls, stories, downloadable files; User authorization and permission scheme; Public and private areas; The descriptions of the nodes will be searchable; and Mailing list can be notified when new content is added.