LinksChecker recursively downloads and analyzes HTML pages, begining from a starting point you provide, and follows the links specified in them. "External" links (documents that are part of another Web site), are only checked for existence and the links in them are not followed further. If there is no output when the program finishes, all links on your Web site are valid. If there is output, some links are dead and should be fixed.
FaqRing is a small PHP knowledge base application that uses a MySQL backend to allow questions to be posted to a Web site. A question is only posted if an administrator approves the question or resolves the question with an answer. Administrators can edit any question and answer as well as delete questions from the FAQ system. The software is easy to install, and requires minimal effort.
Destiney Scripts Topsites is a script for creating a dynamically-generated, traffic gathering "topsite", a competition traffic site on which members compete for placement on the list based on the traffic referrals they send. It features http-referrer- and cookie-based anti-cheat devices, an admin interface, gateway-less entry, and random site selection.
Checky is a document validation and analysis extension for Firefox, Mozilla, and Netscape. It provides an easy-to-use interface to many free and commercial online validation and analysis services. It allows the user to validate, analyze, view, and inspect documents containing HTML, XHTML, CSS, RDF, RSS, XML, P3P, hyperlinks, metadata, and many more. It can check Section 508 and WAI compliance of documents with many helpful services. It can help in the design, development, and maintenance of accessible documents for a semantic web.