site indexer/search engine?

Just wondering what others use to provide a site search feature
against locally indexed data. Anything in ruby that does this? I
have been using Mnogosearch, but would like to find something a bit
simpler without so many features.

Chris

Try ferret[1] and acts_as_ferret[2] plugin.

[1] http://ferret.davebalmain.com/trac/wiki
[2] http://projects.jkraemer.net/acts_as_ferret/