Managing a large address book can be tedious, but it doesn't have to be. Usually when you send out requests for contact information you'll have to scour the e-mail you get back for all the pieces of info you're currently missing. With Postable, you can have contacts edit their own information by sharing a link with them, and then export all of the collected information right to your own address book. Here's how to get started:
First you'll need to head to Postable.com and sign up for an account. Hopefully OAuth support will be added in the future to make this even easier.
When you're done signing up, a new page will load with a pop-up displaying the link you'll share with people whose contact information you want. You can click the copy button next to the link, and it will copy something like this to your clipboard:
Please click this link and enter your contact information -> www.postable.com/yournamehere
After a contact edits their information, they will be given the option to sign up for Postable. This isn't necessary, but can be useful to you and them if they decide to fill out their profile area. When a user updates their profile and changes their address, phone number, and other information, it will also update across all of the Postable address books they are a part of. The same goes for your own information, if you choose to provide it. This is great for someone who travels a lot or never stays in the same place for too long.
Once you're satisfied with the amount of information collected in your Postable account, you can export the entire list to Excel or CSV format for Gmail, Outlook, or Apple Address Book. There's even an option to print labels if you so desire.