There are a lot of people I care about, but sometimes you just _forget_. Or you remember, but it's too late to call them, or they're in a bad time zone, or they mostly use FB and you hate FB. After two kids, rebuilding a derelict house, etc. I found I had to be more intentional about keeping any friendships alive, and this basically seems like a more involved version of keeping friends' birthdays in a calendar to drop them a line.