I was just recently clued in to a feature that I wish I had known about when I first started my online “rolidex.” LinkedIn has a feature that allows you to export all of your contacts and their email addresses into an Excel document, and it’s also super easy. 

To export your contacts, log in to your account and then go to this link: http://linkedin.com/addressBookExport

This is the screen you’ll see: 

Don’t change the .CSV option, and all you have to do is enter the captcha code and click export. Voila, all of your LinkedIn contacts in one document.