If you're a blogger serious about Twitter, the new PeerIndex FireFox Plugin is something you'll want to check out. It adds a yellow box with the Twitter user's PeerIndex rating right in the blog post, search result or Twitter page. PeerIndex is similar to Klout with some additional details on what topics someone Tweets about most. I've done some screen captures so you can see at a glance what the PeerIndex plugin does. Extreme John, an entrepreneurial blogger into indoor tanning salons and … [Read more...]