Kiosko.net & NewsTable.info.
Improve your language level and find out the news from the most important newspapers around the world.
Tips & Tricks
WordReference.com.
Wordreference. This dictionary has everything, and not just in the English-Spanish pair! Take a look at the monolinguals, the synonym dictionaries, the different pronunciations, the forums...
ImTranslator
This Add-On that will make our lives much easier if we work with languages, in a multilingual context or if we are learning a new language and trying to read on the Internet in our target language
Cram.com & DeepL.com
Study cards app to learn vocabulary and more. Free, cross-platform, easy to use and open source.
Cool.