
In the words of the website itself: “1000-Word Philosophy is a constantly-growing collection of original essays on important philosophical topics. These essays are introductions rather than argumentative articles. Each essay is as close to 1000 words (while never going over!) as the author can get it. A 1000-word essay takes between five and ten minutes to read. That’s about the length of a bus ride or a waiting room stay or the lead-up to a class meeting.
“Professional philosophy can seem abstract, esoteric, and hyper-specialized. But we all ask and try to answer philosophical questions myriad times daily—philosophy is the purview not just of the expert, but of all thoughtful people. Our goal in writing and sharing these essays is to provide high-quality introductions to great philosophical questions and debates. We hope that philosophers and non-philosophers alike will benefit from perusing these essays. Our authors generally provide references or sources for more information for readers whose interest is piqued by a particular topic or debate”. (https://1000wordphilosophy.wordpress.com/about/)
The essays are helpfully organised at the bottom of the landing page into different categories including Ethics, Philosophy of Religion, Philosophy of Science, and Social and Political Philosophy. The blog is edited by Dr Andrew Chapman, a Philosophy lecturer at the University of Colorado. All of the essays are well referenced but my only criticism is that the authors are not given any context - it would be nice to know who they were to provide them with more credibility.
A few essays to look out for which are very relevant to A-level are: Just War Theory, The Problem of Evil, The Ontological Argument for the Existence of God, Because God Says So: On Divine Command Theory, Can We Believe in Miracles?, Situationism and Virtue Ethics, and Introduction to Deontology: Kantian Ethics
You can also follow them on Twitter (https://twitter.com/1000wordphil) and Facebook (https://www.facebook.com/1000wordphilosophy)