PostRank Extension

Use PostRank with Google Reader to score to help you find and read what matters. PostRank aggregates engagement activity (tweets, comments, votes, etc), from over two dozen social networks, and ranks stories based on how much engagement each has received. Install the extension, navigate to Google Reader, and PostRank metadata will be brought in, in real-time to help you identify the stories that are receiving the most user engagement. You can also apply custom filters to hide low engagement stories in any feed or folder. Additionally, in the options pane, you can enable PostRank meta-data for Google search results, and even sites like Digg, Reddit, Hacker News, and many others. Along with setting the PostRank values to display in grey scale instead of the default orange colour.