There are some great books I suggest you get. When I had a cross the ocean internet romance I used these to help us get closer. There are several books by Harville Hendrix - One is called Meditations and Exercises for Getting the Love you Want. I never did much with the meditations, but the exercises were great.
The exercises have you filling out lists, asking each other questions, doing role plays ---all designed to help you get to know each other better and to grow closer. Some need to be done face-to-face, but most of them can be done on the phone or via IM or email.
You can get this book and others by Hendrix by goings to http://www.sexsupport.org/resources.html - then go to Susan's List at the bottom right side of the page.
Have fun! Susan