It looks like the best way to send private massages is once someone is your friend, go the upper right-hand corner of your page and you'll see "Inbox." Click on that and it will take you the messaging portion of this site where you can send and receive messages privately. Hope that helps!
I did want to mention that it is still best to contact me utilizing my school e-mail at email@example.com. I only check this site when I have a few minutes in the day, whereas I monitor the school e-mail constantly.
I hope things are off to a great start for you and if you need anything at all, don't hesitate to ask!
To send a private message to someone you must first be their friend.. to be their friend you must click on "add friend" under their profile picture and wait for them to approve it.
once thats done then you can send them private messages.
You can send a private message to any CSRnation member as long as they are your friend.
So, first you have to send a friend request to that person and as soon as they accept you will be able to send a private message.
till then you can leave them a comment on their page.
hope this answered you question