I’ve just been having a look at Kindo, an online social network for family historians. The idea is, you create an account, and begin adding your family using the simple interface – really, it is very easy to use. You have the option of inviting relatives you have added to your tree to join up, thus creating a network of only your own family. This differs a little from typical online networking sites where you can add anyone you feel like, but I don’t think that is a bad thing because a family tree will contain sensitive and personal information which you may not wish to share with strangers, or even friends.
The downside is that all information must be entered by hand, at the moment there is no way to upload a .gedcom file, although apparently that is planned for the future – hopefully, the not too distant future, I have over 1000 individuals in my tree and adding them all manually will be a bit of a faff.
Overall, I like the idea, it is a great way for members of the same family to keep in touch and share research.