Circular is run on a non-profit basis. This means that, to keep the site running, we rely on donations from generous readers and viewers. Think of it as similar to visiting a gallery: we don't charge an entrance fee but we have an anonymous donations-box. Or, if you'd rather, think of it as sitting in a coffee-shop: the Wi-Fi is free and you can sit at a table as long as you want, reading whatever you want, yet you would probably buy at least one cup of coffee or a cake.  No amount is too small; no amount is too large. If you like what you see and want to lend us your support please donate today.