"Xapian is a highly adaptable toolkit which allows developers to easily add advanced indexing and search facilities to their own applications. It supports the Probabilistic Information Retrieval model and also supports a rich set of boolean query operators.

If you're after a packaged search engine for your website, you should take a look at Omega: an application we supply built upon Xapian. Unlike most other website search solutions, Xapian's versatility allows you to extend Omega to meet your needs as they grow."

"Below is a list of applications and their compatibility status with Mac OS X 10.6 Snow Leopard, the most recent operating system from Apple. Please collaborate by sharing your experiences using each application and by adding applications not already listed. Simply click EDIT at the bottom of the page to contribute."