How do you show love and friendship to someone who is on the other side of the globe?

I have a dear friend who lives on the other side of the world from me in another country. We keep in touch daily via instant messaging and occasionally we use Skype to talk. Lately, she’s been going through major depression due to some awful health issues. Even though she rarely responds, I chatter away in IM. I believe it brightens her day somewhat just to know that someone somewhere is keeping her in their thoughts.

What lengths will you go to for a true friend? Can you give examples?