Thatneedle: Semantic Search for retail (thatneedle.com)

Posting for a guy I met on reddit (ikr!). I liked their simple interface, tho the lack of documentation makes me think they don't plan on being a biz-to-dev solution. If signing up is not your thing, here's a direct link to something you can try out: http://www.thatneedle.com/filterd

Soliciting feedback on this HNers!