http://QueryTracker.netIt's my own site, and I made it because I figured the query process needed modernization. Not only does this site contain a list of agents, but it also has tools to help you track all your queries, and collects data about each agent.
Here's how it works. Users record the dates queries are sent and replies are received. They also record the genres of their manuscripts. Data can then be collected showing not only agent response times, but how many queries of each genre did a particular agent receive, how many they rejected, and how many they liked. So now, even though an agent may say they desire a certain genre, you can now see exactly how much they really do.
There's more to it than this even, but I don't want to run this post too long. Take a look and let me know what you think.
http://QueryTracker.net