LingYourLanguage is a game of guessing the correct language after listening to a short audio clip. If you really want to challenge yourself, listen with your eyes closed before reading the multiple choice options. The audio clips are compiled by volunteers in an effort to share the world’s languages with a wider audience — read more about the project here. Listening to the world’s languages has a meditative quality to it and makes me feel more connected to the world itself. — CD

This is so cool. River Runner is a virtual tour of the US that follows watersheds. On the website, pick a place in the contiguous US and then it will carry you along the creeks and rivers that flow from that place until you reach the ocean. You get a photo-realistic ariel view as if you were in a drone following the rivers and passing through towns and farms. For a fantastic and fantastically long (5,000 km) tour, start almost anywhere in Wyoming. These aren’t really a tour of rivers as much as a way to tour the greater landscape of a continent. — KK

The Curious Reader has a great outline of the 4 different reading levels and sub-types pulled from “How to Read a Book.” The first level being Elementary Reading — where the main question of reading is “What does the sentence say?” Level two is Inspectional — where you ask, “What is the book/article about?” This is how I read most news articles and blog posts. Level three is Analytical — when you want to really understand the topic by asking questions and chewing and digesting it. The fourth level of reading is my favorite: Syntopic Reading. This is where you read multiple books on the same subject and compare and contrast the ideas. Each reading level serves a different purpose, so it’s helpful to ask yourself before reading, “What do I want out of this book or article?” — CD

Native Lands is an interactive web map that shows the location of all the indigenous peoples of the world — primarily in North and South America — before they were displaced or eliminated. What is unusual with Native Lands is the high resolution, mapping the resident locations almost to the current county level. You can click on the specific tribe and get links to further information, often from the tribe itself. I was shamefully not aware of the local tribe in our neighborhood before this. — KK

Mindat.org is a great website to lose time if you’re an amateur rockhound. It is a nonprofit project by The Hudson Institute of Mineralogy, and the “leading authority on minerals and their localities, deposits, and mines worldwide.” There’s a lot of ways to search for and discover new rocks, including a cool color search. If you’re more of a “pro” than an amateur you can contribute your own photos and data. My husband likes to bring home rocks from river beds and hikes and I gravitate more toward crystals, but it’s one thing to admire the natural beauty and wonder of our earth’s materials and another to learn about it’s importance and use in our world. — CD

For 50 years this chart has been hanging on my wall. The Histomap of History is a 5-foot long diagram that visually displays the relative power of ancient nations over the last 4,000 years in 50-year increments. At one glance, this colorful chart gives you the gist of world history. Since it was made in 1950, some of the historical details may be considered old-fashioned now, but this is the chart I use to get a rough idea of our past. Visitors to my studio will usually remark on its ingenious design. Long out of print, you can get a reproduction of a vintage copy for $48. — KK

I love this fantastic phone app that identifies bird songs. Merlin does a remarkably great job identifying birds from their sounds, even when they are far away, and even when more than one bird is singing. It works all over the world but you need to load in the library for your geographical area. It’s the Shazam for birds. And it’s free for Android or iOS. — KK

Tvtropes.org is a repository of all the tropes you find in advertising, film, print, music, art, etc., along with examples. Tropes are not cliches — they are storytelling devices and shortcuts for evoking emotion and getting you “up to speed.” It’s hard to avoid tropes altogether, so it’s better to get to know them. This is a growing wiki that you can add to and easily get lost in. Here is a list of Forgotten Tropes that have dropped off from mainstream media. — CD

My daughter introduced me to this terrific YouTube channel that presents the history of life on Earth as if it were a giant multiplayer video game. The creator presents real facts about plants and animals, but calls them “builds” and “upgrades.” Start by watching this video on the Cambrian Explosion, called “When Earth Was in Beta.” — MF

The single unequivocal benefit that civilization, science, and modern life has given us is: longer lives, on average. Extra Life, a new book by Steven Johnson, investigates the origin of this gift. Johnson tells the story of our longer lives quickly, easily, with tons of news. Longevity is an enabling invention that has opened up many other benefits, and its story is important because this miracle has many parents and most of them were institutions. To further the extra 20,000 days we been granted, or to birth other meaningful inventions in the future, we need to continue to improve our institutions. Extra Life: A Short History of Living Longer is a great, fast, important read. The book has a good companion 4-part PBS miniseries (streamable) that summaries the story in the context of Covid-19 vaccines and current events. — KK

I’m fascinated by Aesthetics and the people who submerge themselves in these visually-appealing worlds like cottagecore, which is a romanticized interpretation of western agricultural life (Jonna Jinton has mastered this). This Aesthetics Wiki has all the links to everything you would ever need to know about aesthetics, including how to create your own beginning with a wardrobe, or how to go about blending aesthetics to create something new (I’m leaning towards vintage parisian plus surrealism). It is a fantastic rabbit hole. — CD

I’m still bingeing on The Great Courses videos. These are the best university courses, without university tuitions. Even better, if you have a public library card in the US, you can get free access to The Great Courses through the Kanopy streaming service. I stream the Great Courses, via Kanopy, on my Roku smart tv. In addition to most of the catalog of Great Courses, Kanopy is a real treasure that also offers a very long tail of documentaries, old movies, and tutorials that are too niche even for Netflix. It’s like a public library of video. You are limited to 10 “plays” per month, except unlimited Great Courses. And it’s all free if you have a library card. — KK

I am getting a kick out of Unsuck-it.com where you can find “unsucked” definitions for corporate speak, or as its called on the website “douchey jargon.” What a great explanation of brain dump: Everything an individual knows about a topic, shared via cerebral defecation. — CD

I like to responsibly forage for wild mushrooms. I do that by cautiously collecting only a handful of mushroom varieties that are 1) easy to identify, 2) not easily confused with similar harmful ones, 3) really delicious. If you are able to learn the difference between a head of cabbage and head of lettuce you can learn 10 basic wild mushrooms. A good place to start is this book for mushrooms in North America: Mushrooming without Fear: The Beginner’s Guide to Collecting Safe and Delicious Mushrooms. A second trick is to visit a decent mushroom stall at a farmers’ market and repeatedly buy wild mushrooms to cook. Working with them will give you a good “search image” when you are hunting for them. — KK

Tutorials on YouTube are near infinite in their variety — and quality. I’ve long paid for a subscription to Lynda.com which provides consistently very high quality tutorials for learning to use design and media software, and for learning how to program and code. The courses are methodical and reliable. I can get up to speed or earn advanced skills pretty quickly. I’ve been using them for learning video editing. Recently Lynda was bought by LinkedIn, and renamed LinkedIn Learning. Their complete catalog of 15,000 courses are made available for free via public libraries in the US. Generally all you need is a library card account to gain access through your local library system. BTW, tons of Recomendo readers reminded me that many of the Great Courses (mentioned previously) are also available online for free via your local library. — KK

A fantastic history teaching tool is to give each student a 2,000-year old Roman or Greek coin to clean, study, and keep. Recovered old coins are abundant enough that a bag of uncleaned (and unidentified) ancient coins can be purchased for a few dollars per coin. Of course these coins won’t be high quality; they may be corroded or poorly crafted or well-worn down and indistinct, but they will be authentically old, and actually used as money. That is part of the lesson. Small lots of genuine ancient coins can be bought from reputable sources like Vcoin, where a lot of 20 diverse coins can be $45 (or bit more than $2 per coin). Cleaning them up and trying to identify them gets into their story. Ancient Coins for Education is a resource for educators using old coins, and Kevin’sCoins has tips for cleaning them. — KK

I’ve long been a huge fan of The Great Courses. These are the best university courses on all manner of diverse subjects, taught by the best university professors, recorded for home consumption. Years ago the courses started out as very expensive audio sets on cassette tape (I audited many courses while commuting), then migrated to CDs, then to audible files, and now are on video. All along, they were premium priced, if not a bit over-priced, but I found them to be worth it without exception. There’s a lot of history and science. I have enjoyed and benefited from too many courses to list, including a memorable one of 48 lectures on Ancient Egypt by Bob Brier, and another on appreciating classical music by Robert Greenberg. Now, yeah!, select courses are available free on Amazon Prime video. A search on Amazon will bring up all the current Great Courses. But to my frustration, courses will be free for limited times and then revert to paid episodes. For instance the really tremendous course on the Ancient Civilizations of North America is free now. It methodically describes the vast and sophisticated civilizations that existed in my backyard, which I was not taught about. But it will only be available until January 31, 2021, so watch now. (Or I could subscribe to the new Great Courses channel on Amazon for $8/month.) So far I’ve happy to watch the excellent ones that come up free each month. — KK

I was inspired, surprised, and entertained by Tom Whitwell’s list of 52 things he learned in 2019. He now has a similar list for 2020. Here are some of my favorites. — MF

• All of the ten best-selling books of the last decade had female protagonists. [Tyler Cowen]

• When Ibn Battuta visited China in 1345, facial recognition was already in use. All visiting foreigners had their portraits discretely painted and posted on the walls of the bazaar. “If a stranger commits any offence… they send his portrait far and wide.” [Ibn Battuta]

• Money makes people happier than psychotherapy. [Johannes Haushofer & co]

• In just eight years, the British National Grid went from being 40% coal powered to 2% coal powered. [Simon Evans]

• Developing and launching the iPod in 2001 took just 41 weeks, from the very first meeting (no team, no prototype, no design) to iPods shipping to customers. [Patrick Collison]

• In Warsaw’s Gruba Kaśka water plant there are eight clams with sensors attached to their shells. If the clams close because they don’t like the taste of the water, the city’s supply is automatically shut off. [Judita K]

• A micromort is a one-in-a-million chance of death. Just being alive is about 24 micromorts per day, skydiving is 8 micromorts per jump. [Matt Webb]

I’ve been listening to Japanese stories on Beelinguapp, a smartphone app that reads stories in 14 different languages. I set the speed at 50% so I can read along as a native speaker tells a simple story. Beelinguapp is free for iPhone and Android, and you can get the premium version (which has more stories and other useful features) for $40. — MF

Journey to the Microcosm is a YouTube channel that uses high quality microscopic video to explore lifeforms invisible to the naked eye. The narration includes interesting stories and histories, too. — MF