Narratif has just launched its tool based on latent search technologies to sift through the tidal wave of Twitter conversations and provide meaningful trending data.
Rather than providing dry, quantitative data about sentiment, number of retweets, etc., Narratif povides results formatted and condensed as ranked conversations (or stories) with influencers. The interface is simple, fast and nicely laid out. It enables a user to identify trend data, discover influential articles and identify influencers.
Currently in beta (and free), the tool is running on 10% of the Twitter Firehose and has the last week's worth of Twitter data. Here's a sample set of what I found on #marketingautomation: