Web Glimpse
Webglimpse is a feature-rich search engine, all different flavors of Unix.

PerlFect Search
Perlfect Search is an integrated, general purpose, site indexer and search engine.

Namazu
Namazu is a full-text search engine intended for easy use.

DB Search
This amazing script creates realistic, highly effective, search engine optimized pages within seconds/minutes. Automatic Doorway Blaster can drive massive amounts of traffic to your website!Features: - Configure the script according to your need. - Password protected Admin Area.

1-Search
1-Search - More than just search!

PRO - Search
PRO-Search is a crawler of FTP servers, SMB shares, HTTP, dc networks and more.

SPINdex
SPINdex allows ones website to be easily searchable, with minimal overhead and extra programming

Ring Link
Ringlink program is a Perl program that provides the tools you need to run one or more webrings, i.e. systems of links between related web sites.

Diogenes
Diogenes is a tool for searching and browsing the databases of ancient texts.

Open FTS
OpenFTS (Open Source Full Text Search engine) is an advanced PostgreSQL-based search engine

Silly Search
SillySearch lets you allow a visitor to search through pages in a single directory on your website for pages containing words that the user enters into a form.

Simple search
Simple Search allows you to integrate a keyword and boolean search program into your site so that users can search specified text and HTML documents.