i feel you should send them a welcome Card and then the welcome Letter. and updates and treat them ,
As you would a person ,you were getting to know as a friend,Thats what you will be as long as you are groing in this business.Tell them Tips about, There next steps each time they are close to new step,if they have not been online ,For a day or so , it,s up to you!, Just do not do it for them,You will handicap Them and you.Because They will leave when you stop.