We now have a "magic mailbox" feature for PeopleMatrix which allows you to CC a specific email address on an email message and have the content of that message automatically added to any relevant contact records you have. All without ever logging in to PeopleMatrix. Let's say you're sending a notice to a client or emailing a potential job candidate and don't have time to log in to PeopleMatrix and make a note. Just CC PeopleMatrix on your message ... and voila!! It's magic.
Many of our customers use MailChimp for email campaign management. It's a nice tool for that. We now have a feature that will synchronize any of the contact groups you designate in PeopleMatrix with your MailChimp lists.