Xobni is the Outlook plug-in that helps you organize your flooded inbox !
Xobni integrates into your Outlook installation and shows you more about your e-mails than Outlook can itself. For each person who sends you e-mail, it shows you who else they communicate with a lot (their de facto social networks), and it finds their phone number from inside their e-mails. It also shows you all conversation threads you’ve participated in with the person, and all the attachments they’ve sent you. You can drill into message threads (very useful), and it has a snappy e-mail search engine built in (nice, but redundant).
Unlike many other Outlook add-ons that I’ve tried, this one seems to add its functionality without dragging down Outlook’s performance, or worse, crashing it. It is useful and it doesn’t get in the way. There’s no reason not to try it. And it’s free.
Xobni is neat bit of programming… check it out…