Webglimpse is a fast, feature-rich search engine for finding information in a related web of pages. Index your own site or any collection of remote sites you choose. You can add extensions for PDF, Word and Excel documents; can index and output results in French, German, Hebrew, Spanish and other languages. Flexible ranking rules, customizable output format, caching of results, subdirectory-specific searching, much more. Scalable up to 100s of Gb of data. Web & command line administration interfaces.
Platforms: Linux, Solaris, SunOS, HP/UX, freeBSD, AIX, IRIX, OSF, Mach, Rhapsody (Mac OS X). Free for non-commercial use."