Comprehensive search engine for books, papers, comics, magazines
Digital Library Software
World's first seo control panel for multiple websites
Easy Spider is a distributed Perl Web Crawler Project from 2006
Self-hosted search engine with web service to share discoveries with
Web directory script to launch directory site
An Open Source "product catalogue" that is customizable and versatile.
Google Search, Google Site Search, Google News from the terminal
Decentralized Web Search Engine
Concise spatial query and representation system (c-squares)
Bookmark manager web application
Very configurable web downloader
An open source search engine with RESTFul API and crawlers
XYZ Classifieds is a feature rich, simple PHP + MySQL based script.