The networking database services company, ZoomInfo has lanuched a new service Zipi for MS Outlook users. Keep your Outlook contacts up to date.
ZoomInfo has (when I checked) 45M records. This new service is like using Jigsaw to find contacts and Plaxo to keep your outlook data in a good shape but with the massive network database from ZoomInfo. Check it out. I think it is a very useful service even though I don't use Outlook for emailings, I still use Outlook as an offline contacts database. My custom MS Access based contacts database is faster and better when extracing data but Outlook is very convenient for a lot of business and websites out there.