My wife is way better at cataloging our images than I am, but we use Dropbox for everything. All images get put into a folder by event and year. We have IFTTT

My wife is way better at cataloging our images than I am, but we use Dropbox for everything. All images get put into a folder by event and year. We have IFTTT save all Facebook images and Instargram images into Dropbox as well. For viewing, we use iPhoto mostly.