Can You Improve Your E-Mails by Analyzing Recipients Personalities?

Startup Crystal claims it can help you write better e-mails by mining recipients online data for clues to their personality.

It can be hard to figure out just what to say in an e-mail to someone you dont know very well. A startup wants to make this easier by correcting messages as you type, suggesting changes that may make the recipientmore receptive to what youre saying. These suggestions are gleaned from data gathered about the recipients online.