The site now supports Private Messaging over the site. You will see in your member box that a new option has appeared called inbox. This obivously will contain any messages sent to you.
To send a message to someone you can do it 2 ways. Either click on the inbox option and enter the username of the person you want to send the message to. Your alternatively and the better way is to click on the members name and then click on the "send private message" link in their user info! You have the ability to delete the message you sent them if it is unread which could be handy if you message them about a problem you are having and then you solve it.
Hope you find this handy and that it reduces the need for posting email addresses in main forums and pages as it puts them at risk from spambots harvesting email addresses.