Some time ago I was invited to use Powerset , a new natural language search tool! I'll share my experiences with you. The user-interface is wonderful! It’s clear, not clogged, lets you type in comments without moving away from the pa ge, etc. Here are two screenshots to give you an idea. When you start using Powerset you get to watch a couple of short video’s on how Powerset works, how you can use it, what the limitations of this version are, etc. Insightful, good expectation management. (By the way, why not let all be able to see those video's, while they're waiting for invites?) To give you a taste of how Powerset’s natural language search works they’ve created a set of queries to illustrate the power of their semantic index. The reference applications are limited to ‘speech’ (quotes), ‘business’ and ‘arts’. There's an application called Powermouse, which gives us a glimpse into Powerset’s natural language index and lets us see how it extracts struc...