family

I started a project two days ago. A huge project. The idea is to gather information about Torola family. And create a more up-to-date family tree including us, the Finnish side.
I created a form. A simple way for everyone to tell me some basic things about themselves and their families. It's been 2 days. I've received 5 replies plus my own. It is cetainly not going as smoothly as I imagined. I dont know what to do to get people interested in this cause. Should I create a Facebook cause?
There are people who are really looking forward to the results.. Why arent the rest of the people helping us?
Anyone got any ideas how to get those people to fill the form?