Vincent,
  On Jan 22, 2008, at 10:39 PM, Jim Dowson wrote:
> Has anyone explored integrating a Google search appliance into
> xwiki 
 > as a search engine alternative?
>
> We're interested in exploring this option, and we would like to
> collaborate/share with the community. 
  I'm interested in the answer too.
 Do you have any idea what would be the pros of this solution
 compared 
  to using the XWiki Lucene plugin? 
 'Best of breed' speed of search, and federated search (from other
 portals) for large amounts of textual data. 
 Lucene is quite fast too. This looks like an interesting use case
 when you have lots of data not only in the wiki but outside of it
 too and you want a single aggregated search.