Personal Search Engine (PSE) allows a webmaster or developer to easily
add a local search engine to an existing Web site. It uses a number of
versatile techniques to index a Web site into a database, then deliver
adequate references to a query consisting of one or several keywords.
It offers ranking of each match. Ranking is done on a per-query basis
and can be between 1 and 100%. PSE can be added to multiple virtual
hosts residing on the same physical server without any interference
between different virtual hosts.
