Is there any good search tools for asp.net I can buy to carry out search indexes easily on data I have in my database?
What I require is something that would carry out a general site search of articles but also faceted search as well. Faceted search is quite important feature.
Thanks.
I agree with Mauricio Scheffer, using Solr.NET will help achieve what you want. I implemented a basic ASP.NET web form example around a year back. I found this link to be very useful to get me started: http://crazorsharp.blogspot.co.uk/2010/01/full-text-search-using-solr-lucene-and.html
Using the example (above), I managed to create this (DISCLAIMER: personal site): http://surinder.computing-studio.com/post/2011/01/14/At-Last!-Created-My-Own-eBay-Style-Search-Using-Solrnet.aspx
You can implement facets with Lucene.NET, Solr, Sphinx, FAST, Endeca, probably also Xapian.
None of these will be trivial to integrate though, since they use very different data structures from relational databases. Usually you have to denormalize your data to feed it to a full-text search engine.
SolrNet includes a sample ASP.NET MVC application that shows how to implement facets with Solr.
Disclaimer: I'm the author of SolrNet.
Lucene .net great http://incubator.apache.org/lucene.net/
Its a .net port of the very popular Java search library Lucene.
Now, I prefer having a stand along search engine to remove the strain from my site. I use Solr which is Java, but you can use SolrSharp http://solrsharp.codeplex.com/ or SolrNet http://code.google.com/p/solrnet/ to intergrate with solr.
来源：https://stackoverflow.com/questions/4501729/what-search-tools-are-available-for-asp-net-site