TalkPage
Every AboutUs user account comes with a PersonalPage and a TalkPage. Leaving a message for someone on their talk page is often the best and easiest way for one user to communicate with another.
You can navigate to your own talk page by clicking "my talk" in the upper right top menu, and if you are on another user's page you can usually hit the "discussion" tab at the top of their PersonalPage.
When an edit is made to your talk page you will be notified by an orange box near the top of the page upon your next page refresh/save or the next time you log-in to AboutUs. Also, depending on your preferences you may also be notified by e-mail when a change is made to your talk page.