I'm not entirely sure this one counts as one of the "self portraits", but it totally reflects an important part of my family life, and why I'm a strong supporter of giving whomever created skype a nobel peace prize.
I don't travel too often, but when I do it tends to be for longer periods, and being able to see them, more importantly, being able to be seen by them, I think makes a world of a difference.
I still remember growing up the biannual calls to grandma: one for her birthday one for christmas. They were short and loud. My grandma still screams at the phone.
If you are an aid worker, (although I am sure it applies to many other professions), skype is almost another family member.