Xapian is an open source probabilistic information retrieval library, released under the GNU General Public License (GPL). That is, it is a full text search engine library for programmers.

Sphinx is a full-text search engine, distributed under GPL version 2. Commercial license is also available for embedded use.

IBP is a website submission tool that has a huge advantage over other search engine submission software tools.
iBusinessPromoter (IBP) is a multi-award winning website promotion software tool.

PhpBB is a high powered, fully scalable, and highly customizable Open Source bulletin board package. phpBB has a user-friendly interface, simple and straightforward administration panel, and helpful FAQ.

Website Popularity is the fastest and easiest way to see how your website ranks on all of the important areas of the Internet, from search engines to social media sites. No manual digging and guessing - Website Popularity is fully automated and runs right from your desktop

Keywords, backlinks, search engine ranking - no matter if you are a SEO professional or hear about these terms for the first time: Our software Hello Engines! will help you to do search engine optimization for your website - in an easy, comfortable and fast way.

YaCy is a scalable personal web crawler and web search engine. One YaCy installation can store more than 10 million documents, but in a community of search peers YaCy can provide a search index of unlimited size.

LinkAssistant SEO Tool is shareware, meaning you can try it free before you buy. You can download a fully-functional version of LinkAssistant free, see if it fits your requirements and make an informed purchasing decision.

Mambo is an award winning, feature rich content management system; it is used for everything from simple marketing websites to complex portals. The project is over 6 years old and backed by the non-profit Mambo Foundation. Membership is open to all.

Sphinx is a full-text search engine, distributed under GPL version 2. Commercial license is also available for embedded use.

A lightweight search engine in PHP. Includes details of features, documentation, support forum, and download. [GPL]

mnoGoSearch is an open source search engine written in C. It is distributed under the GNU General Public License and designed to organize search within a website, group of websites, intranet or local system.

YaCy is a scalable personal web crawler and web search engine. One YaCy installation can store more than 10 million documents, but in a community of search peers YaCy can provide a search index of unlimited size.

Namazu is a free full-text search engine software under GPL licence, originally developed by Satoru Takabayashi. It can work as a scale Web search engine, and also as a desktop search for email or other files. It is written in Perl.

Egothor is an open source search engine implementation written entirely in Java to ensure cross platform compatibility.

Xapian is an open source probabilistic information retrieval library, released under the GNU General Public License (GPL). That is, it is a full text search engine library for programmers.

LinkAssistant SEO Tool is shareware, meaning you can try it free before you buy. You can download a fully-functional version of LinkAssistant free, see if it fits your requirements and make an informed purchasing decision.

A web authoring tool which acts on an HTML document, counting the number of occurrences of words and how they are used, and produces an appropriate keywords meta tag for the document (which can be automatically inserted into the document)

Improving a web site's search engine visibility and competing with other web sites for a top position isn't easy. Without the right tools, it's virtually impossible. WebPosition Professional extends WebPosition's market-leading reporting environment allowing you to gain even more control of your search engine position data.

Submit to both website directories and article directories.
Sort over 3,000 website directories and 600 article directories on Google PageRank, Alexa Traffic Rank, or number of Incoming Backlinks to the directory.

PhpBB is a high powered, fully scalable, and highly customizable Open Source bulletin board package. phpBB has a user-friendly interface, simple and straightforward administration panel, and helpful FAQ.

IBP is a website submission tool that has a huge advantage over other search engine submission software tools.
iBusinessPromoter (IBP) is a multi-award winning website promotion software tool.

LinkAssistant SEO Tool is shareware, meaning you can try it free before you buy. You can download a fully-functional version of LinkAssistant free, see if it fits your requirements and make an informed purchasing decision.

PHP-Fusion is a light-weight open-source content management system (CMS) written in PHP. It utilises a mySQL database to store your site content and includes a simple, comprehensive adminstration system. PHP-Fusion includes the most common features you would expect to see in many other CMS packages.

PHP-Fusion is a light-weight open-source content management system (CMS) written in PHP. It utilises a mySQL database to store your site content and includes a simple, comprehensive adminstration system. PHP-Fusion includes the most common features you would expect to see in many other CMS packages.

Directory submission is the key to building your website one-way links and increasing your site popularity with search engines!

Mambo is an award winning, feature rich content management system; it is used for everything from simple marketing websites to complex portals. The project is over 6 years old and backed by the non-profit Mambo Foundation. Membership is open to all.

IBP is a website submission tool that has a huge advantage over other search engine submission software tools.
iBusinessPromoter (IBP) is a multi-award winning website promotion software tool.

Active WebTraffic web promotion software and search engine submission software that includes everything you need to promote your web site on search engines.

Website Popularity is the fastest and easiest way to see how your website ranks on all of the important areas of the Internet, from search engines to social media sites. No manual digging and guessing - Website Popularity is fully automated and runs right from your desktop