Librarians are Gatekeepers of information -- well in spring 2007 we may finally have our Key master.. err I mean Masterkey. (found via catablog)
This is an early prototype of a new metasearch technology developed by Index Data. It is scheduled for general release during the spring of 2007. It enables efficient metasearching of up to hundreds of databases at the same time using Z39.50, SRU/W, or proprietary protocols. It is a powerful, open-source-based alternative to proprietary, closed-source metasearch alternatives.
The technology supports on-the-fly merging, relevance-ranking, or sorting by arbitrary data elements. It also supports any number of result facets for limiting result sets by subject, author, etc.