A video diary, at its most basic, can be just you talking into the camera. Sure, it means you're making another talking head video. But it's your head, and since it's your diary, it's okay to put your head on it.

For a personal vlog diary, you could also include footage of your day. For example, if you went somewhere or did something, include video of what you did or where you went. Or a photo you took, or even a scanned receipt (but make sure you blur out your credit-card numbers!).

Your personal video diary can explore the world in which you live, especially if that world is not typical. Videobloggers in war zones have an opportunity to make the world hear their voices and that of their community in times of upheaval and change. Anne Frank kept a personal diary through her years in hiding, a diary that has become a tremendous work to showcase an individual life in crisis. A personal diary vlog can do the same for you.