PySMBSearch is a crawler and search engine for SMB shares. It consists of a crawler script, which creates an index and stores it in an SQL database, and a CGI script that can be used to extract queries from the database.
FTPList/FTPCrawler is a Multi-threaded and MySQL based FTP Crawler, it has a PHP interface which you can use to search in the database, see FTP status (up, full, down), and more.
It's designed for enviorements like big LAN-Partys i.e Remedy.