Exciting times in MODX development are ahead.
Last Friday, we released a new version of SimpleSearch which fully supports Solr-based searching. Solr is an Apache-based search platform from the Lucene project, and is absurdly fast and accurate in its search results. We made it a priority at MODX to get this functionality into our system, and now SimpleSearch has the ability baked right in.
The official docs for SimpleSearch, which can be found here, have a nice tutorial on how to setup Solr-based search for your MODX site. It's a relatively painless process, especially if you already have a Solr instance already set up and running.
The Extra also packs in quite a few Settings to help you configure Solr just the way you like it:
