Facebook: (change) – I no longer post to FB and quit that long before the recent FB API rules change. Brid.gy had problems and I didn’t care enough about FB to try and fix it.
Twitter: (changed) – this blog now posts to Twitter via WordPress Jetpack. I made the change because I can control what goes out to Twitter on each individual post.
G+: (same) – via Jetpack.
Mastodon – (same) – via Mastodon plugin
WP Reader – (same) via Jetpack.
Micro.blog – via Micro.blog and RSS.
Indieweb.xyz – this is manual, on a post by post basis.
I get quite a bit of traffic from all the above.