title: .Net based open source search engine?
body: <p>I am looking for an easy to use, maintain and extensible search engine (intranet, enterprise search engine) based on .Net technologies, better open source which is more capable of extension. Just similar to Apache Lucene and Apache Solr. I want to search html page only.</p>
  
  <p>I tried Microsoft Search Server and find it is not easy to maintain, use and extend, not easy to make own UI, bound too tight to SharePoint. I am using VSTS 2008 + C#.</p>