If You knew What I know about Yoono…
I found this great little sidebar app for Firefox that allows you to connect with a few of your social networks, plays your last.fm, imeem, or seeqpod music , accesses your email and im accounts and more. Not only is it useful but attractive and you can skin it to match your firefox browser theme. Yoono connects you right to your sites or you can update right from the sidebar. Try it out for yourself.
I am hoping that yoono will add more social network links in the future.