The Agent Query widget provides information on the movers and shakers in the literary agent industry.
From AgentQuery.com: AgentQuery.com offers aspiring writers a free searchable database of literary agents seeking new talent. This widget feeds from our literary social networking site AQ Connect. Writers actively submitting their work to literary agents share their updates and experiences.
Here is the widget below as you'll see on the right side of my homepage. Feel free to click the Get Widget tab under the widget to grab the code for your own blog.