Reading Addons for Firefox
I love connecting all of my reading sources together, which is what led me to buy a tablet a few years ago. It is always pleasant to be able to access ebooks, check out RSS feeds and read articles in the same place, and in a single format. Which is a luxury you can have on your browser, as well.
For anyone who uses Firefox, it is even simpler to get there benefits for your desktop. There are a ton of extensions that have been created for reading, whether that is books, articles, websites or blogs. Some even have compatibility with transcripts taken from videos.
Trying to decide which extensions are the best is difficult, because there is such a wealth of choice. But I would have to say these are the ones I have personally used and found truly useful.