This is Sumit. A simple extension which allows you to preview websites. Simply hover over a link for 2 seconds and a summary of the page will appear. This app is currently in beta right now, but the basic functionality exists. You need to follow the API setup instructions in the popup menu of Sumit for the summarization to occur. Without an API key, Sumit will simply load Iframes instead of summaries of webpage. A few features are currently in development as well.