You could also try cludo.com.
We have made an easy to use Cloud-based search solution and are focusing on giving the control of the search back to the webmasters.
- Some of the features we provide are:
- Synonyms - Your customers search for jeans, but you call it pants. With synonyms a search for jeans might also return results for pants.
- Spell corrections – We all do spelling mistakes, but that shouldn’t limit your users from finding results for their searches.
- Banners – Want to show your opening hours when your users search for “opening hours”? Then use banners.
- Analytics – If you know what your customers search for, you can help improve both your search engine and your web site content.
- Support – We might not be as cheap as GSS, but we live by our happy users, and if you have any issues you can always call to get assistance.
Disclaimer: I work there.