[Froide]

On my laptop - the "mothership" for all my digital media - I have installed:
Calibre, Dropbox, apps from major ebook sources (e.g., Google Books, Kindle, Kobo, NOOK), elending apps, selected audiobook apps (e.g., Acoustik, Audible, Downpour), and Media Monkey. I download most of my files here and back them up elsewhere, both in the cloud and when backing up my entire hard drive.

On my smartphone and NOOK HD (both Android devices) - the satellites for my digital media - I have installed: Calibre Cloud, Calibre Companion, and Dropbox to interact with Calibre, Moon+Reader Pro as my ereader, and all of the other above-mentioned apps. I typically download to these satellite devices only files I'll need when on the go; the rest I leave in the cloud and on my laptop's hard drive.

In Calibre, I catalog the audiobooks and ebooks I own, along with useful metadata. I use empty files for audiobooks and for ebooks I can't or won't download.

In MediaMonkey, I import all of the audiobooks I own and duplicate their metadata from Calibre.

In Goodreads and Business Tasks, I keep track of books I want to read, those I've read, and any notes or comments I want to save about them; library books I've placed on hold and where; and books I'm currently reading, with their library due dates or dates by which I must read them for other purposes (e.g., in preparation to deliver a lecture or to discuss them at a meeting).