DataparkSearch Engine is a full-featured open sources web-based search engine released under the GNU General Public License and designed to organize search within a website, group of websites, intranet or local system. DataparkSearch consists of two parts. The first part is indexing mechanism (indexer). Indexer walks over html hypertext references and stores found words and new references into database. The second part is web CGI front-end to provide search using data collected by indexer
Welcome to the Xapian project website.
Xapian is an Open Source Probabilistic Information Retrieval library, released under the GPL. It's written in C++, with bindings to allow use from other languages (Perl, Python, PHP, Java, and TCL are currently supported; Guile and C# are being worked on).
Xapian is designed to be a highly adaptable toolkit to allow developers to easily add advanced indexing and search facilities to their own applications.
If you're after a packaged search engine for your website, you should take a look at Omega, which is an application we supply built upon Xapian. But unlike most other website search solutions, Xapian's versatility allows you to extend Omega to meet your needs as they grow.
php.Google Search Script is a open source php script.You can run your own Google Like search engine.