Xobni is an outlook plug-in that saves you time in searching for conversations, attachments, contact information and emails. Even though outlook has searching capability, Xobni makes it that much easier. You don't even have to change screens and it is very quick.
Xobni also shows you the statistics of your outlook contacts. Like what time of day they send you mails, who replies the quickest, who mails you more frequently and how many mails have been sent from and to that contact.
You can use Xobni to fine out to which social networks your contacts belong to, like facebook, twitter, linked in etc. It shows you which contacts are in the same network, by grouping them.
These are just a few of the function that Xobni has. I like this tool, it saves me a lot of time, making management of my mail a lot easier. When I'm tired of seeing it, I just minimize it into the sidebar.
Try it out. Download it here