Here are some things I've tried and found very interesting or very useful. They can help you improve your productivity, your English or develop your knowledge.

Reply All – a podcast about the internet and Internet-related phenomena, produced by Gimlet, the award-winning podcasting company (the hosts tend to speak very quickly, so it can be challenging at times)

Homecoming – another Gimlet production, a thriller podcast, which has proved so successful that it was turned into an original Amazon series starring Julia Roberts

13 Minutes to the Moon – a podcast about the successful Apollo 11 mission (season 1) and the aborted Apollo 13 mission (season 2)

Toggl – a free time tracking software

Apps for learning vocabulary – Anki and Memrise

Collocation dictionary – a useful tool when you're trying to find words that typically go together e.g. pose a challenge; a direct challenge to

Corpus of Global Web-Based English – contains about 1.9 billion words of text from 20 English-speaking countries. You can use it to see real-life examples of sentences that provide context for key words you want to check. It also contains a downloadable, full-text corpus data from 9 large corpora with 950 million words

Seeing theory – a website created to make statistics more accessible through interactive visualizations

Random – a website devoted to probability, mathematical statistics, and stochastic processes. It contains explanations, interactive web apps, data sets, biographical sketches, and an object library

More or less - Behind the Stats – a weekly programme that looks at statistics that surround us and tries to explain or verify them