Simple, useful, and timely. Thanks for compiling this!
I would also recommend checking out www.callyourfriends.io as a potential addition to the 'stay in touch with friends' section. Similar to a few on there, but it's strictly web-based and uses SMS reminders rather than requiring an app download.
Given how many people FB serves with their products, I think we will need tons of options for all kinds of people to replace it.
