Searchlink can be included on any html webpage and does not require a Java server. A web site visitor uses the search engine in a similar way to other Internet search engines, once a list is returned the links can then be followed with a single click over the appropriate link name.
Jakarta Lucene is a high-performance, full-featured text search engine written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.
PersonalSearch allows you to create a search engine for you own site. You decide what keywords it should respond to and what URLs are included in the engine.
The Indexer is a java program that you can run at the command line of your computer. It will proceed to grab the titles, keywords, descriptions, and text from your html files.
HouseSpider is an Java applet that adds indexing and search capability to your web site. It can search by two methods, by spidering through your site or by searching a cached index file. Spider-searching is slow, but very easy to set up and requires no maintenance. Cache-searching requires only a little more attention to set-up and is very fast, sometimes even faster than server-hosted cgi programs. HouseSpider also supports compression (in zip-format) of the index file.