Years ago there was a tradition of an annual Christmas letter that contained an update on the status of the family for those far flung members of the family tha

Years ago there was a tradition of an annual Christmas letter that contained an update on the status of the family for those far flung members of the family that you didn't keep that much in touch with. Perhaps write the tings you want to share down and send them out as a quarterly update? That would have the effect that you are not imposing too much, and that you have some time to reflect on what you want to share (so you are less likely to share pieces that make you angry or that only have temporary impact). I am not on a social media with my mum, but when I see something that might interest her I send her the link in an Email.