TikTok's 'sonic logo' imprints the app's identity across platforms

How Netflix's sound logo 'Tudum' was designed as a key sonic differentiator

The Netflix sound logo—called by the company "Tudum!"—debuted in 2015 and has become one of the world's most iconic sound symbols, designed to provoke anticipation. An immense amount of creative work went into designing this three-second sonic marker, which is heard daily worldwide by millions. Key players in its existence weigh in on its creation in this absorbing episode.

A timeline and visuals on TikTok's rapid growth

The app that would become TikTok is known as Douyin in China, and this article recounts its history, acquisition of rival Musical.ly, and rebranding ahead of its lightning growth. One visualization shows how quickly TikTok reached 1B users.

TikTok CEO Shou Zi Chew on its future

TikTok CEO Shou Zi Chew dives into how the trendsetting video app and cultural phenomenon works, from what distinguishes its algorithm and drives viral videos, to the challenges of content moderation and digital addiction in this wide-ranging conversation with the head of TED, Chris Anderson.

TikTok's personalized algorithm activates the brain's reward system

A 2025 Washington Post study found that 75% of the TikTok users it studied nearly doubled their time spent on the app within a month. Experts in design and psychiatry say this is due to the app's interface and algorithm, which, after learning about the user's preferences, recommend videos more likely to activate that person's dopamine reward system than non-personalized suggestions.

How to read the news on TikTok

There's plenty of news on TikTok, but that doesn't mean it's all reliable. This guide, written by a communication technology professor, breaks down the ways the app's algorithm delivers news. It also covers how users can determine whether or not a story is factual or misleading. Most strikingly, the professor warns readers that if they didn't search for a TikTok video, then "it probably found you."

TikTok's algorithm has changed the way hits are made

Songs aimed at TikTok's algorithm—designed for viral dances or soundtracking common experiences—often find success on the Billboard charts. An early example was Lil Nas X's "Old Town Road," which used his memes and a country-trap beat from the Netherlands to rise to the top of the Billboard charts.

Music today is often intended to circulate on social media

Artists are increasingly using TikTok and other short form video platforms as a space to promote their music. One scholar notes this emphasis, and connect it to Taylor Swift's early use of social media to promote her own work and brand.

The rebrand to X was to make Twitter an all-in-one social media app

Elon Musk renamed the platform as part of his plan to create an app that goes beyond posts and tweets. The rebrand included a new name, logo, and vision for a platform that offers messaging, video, banking, shopping, and more.

Most memes now begin on TikTok

The website Know Your Meme looked at the data for 700 to 1,400 memes uploaded to the platform each year from 2010 to 2022. In 2010, a majority of memes began on YouTube (34%) or 4chan (28%), but by 2022 most were starting on TikTok.

Why TikTok loves fast-casual restaurant Chili's

The company noticed TikTokers posting enthusiastically about its food and began partnering with creators on the platform. The videos include mukbangs, a South Korean trend in which users eat a massive amount of food, and #cheesepulls, where Chili's mozzarella sticks are stretched to their limits.

How to catch a TikTok thief

Someone took a 10-second clip of a parody video made by Hugh Clegg and posted it to TikTok, where it racked up millions of views. The uncredited clip meant viewers assumed it was owned by the uploader, an assumption Clegg was eager to rectify. His messages and comments had no real effect outside of earning him temporary bans for "spamming." So he decided to moonlight as a private eye.

Why TikTok loves Rainer Maria Rilke

It seems like an odd fit: A social media app known for bite-sized videos and a long-dead Austrian poet. Despite the odds, Rilke, especially his famous "Letters to a Young Poet," has become an unexpected trend on TikTok, where influencers share his wisdom on creativity and self-discovery.

TikTok's top 10 users have over 1B followers

Influencers like Charli D'Amelio and MrBeast, as well as more traditional stars like Dwayne "The Rock" Johnson, produce content that keep people scrolling.

Understanding 'YouTube Face,' the platform's pervasive thumbnail style

It's an image that's rampant across the web's premier video platform: open mouths, astonished eyes. It looks cheesy and cheap, yet its practitioners are some of YouTube's most popular personalities. The Ringer's Nate Rogers digs into the history of the phenomenon to learn why it's had such staying power.

X's bird logo cost just $15 and wasn't added until four years after launch

When Twitter launched in 2006, it featured green, slimy lettering and lacked the now-famous bird icon. The bird was adopted in 2010 and eventually became the platform's official logo—unofficially named Larry after NBA legend Larry Bird.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

Here is a visualization of the creator economy as an ecosystem

From social media platforms like Instagram and TikTok, to major advertisers paying influencers to promote their brands, to the consumers watching online content, quite a few engines have to keep firing to make the creator economy run smoothly.

Meta has added video features to attract more young users to Facebook

Amid an aging userbase and competition from newer social networks like TikTok, Facebook has seen its perceived relevance and cool factor progressively decrease. The Local tab and dating features are among several efforts to counter this perception.

How Tencent's QQ penguin became a national mascot

Created when Tencent launched the first version of its internet messaging platform, the company's winking penguin has become a ubiquitous cultural presence in China. The mascot has become a revenue generator, with Tencent licensing the character for cross-promotion with KFC, Midea Group, and more.

The TikTok ban isn't just for TikTok

The Protecting Americans from Foreign Adversary Controlled Applications Act makes it unlawful for any “foreign-adversary controlled” entity to distribute, maintain, or update any “website, desktop application, mobile application, or augmented or immersive technology application” within the US.

Tencent is the world's largest video game publisher

Despite mainly being known for its 1.4 billion WeChat users, Tencent has quietly expanded its video game empire to include more than 600 investments. These include 100% ownership of Riot Games (maker of League of Legends) and 30% of Epic Games (Fortnite), two of the most popular online video games.

Learn what different trademark symbols mean

In the US, brands can technically use a trademark without actually filing a trademark with the United States Patent and Trademark Office—which is where the ™ symbol comes from. However, brands that have officially filed trademarks can use the ® symbol in their branding.

Nike is one of the world’s most recognizable brands

People recognize the Nike “swoosh” brand logo all over the world. The simplicity of the logo and the short, snappy name of the company are largely responsible for the brand’s wide-sweeping visibility.

Robinhood's mission of democratizing finance included its IPO

In 2021, investing app Robinhood went public—and decided to go about its IPO process differently. Unlike other companies, it opened up its IPO for the general public to purchase right away. A podcast episode explains what made Robinhood's IPO so unique prior to its launch date.

Tesla has incorporated several Easter eggs into its electric vehicles

After a customer complained that the car's sounds woke up his baby, Tesla implemented "Joe Mode," which quiets sounds, in his honor. Autopilot can be used to engage a depiction of Rainbow Road from Mario Kart on the navigation screen.

Ads follow you around the internet through cookies

A technology called “cookies” enables advertisers to essentially team up and follow your behavior around on the internet. This video explains why it seems like ads seem to follow you as you go from website to website—as well as data privacy advocates’ war against cookies.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

Fireworks make a loud booming sound after exploding due to air expanding faster than the speed of sound.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Watch this video that uses Lego bricks to explain how venture capital works.

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Tattoos remain visible on your skin thanks to immune cells called macrophages

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

Dorothy's famous entrance into Oz in 'The Wizard of Oz' relied on analog tricks, including a body double and sepia-toned paint, as much as it did on technology

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

After NASA's Voyager 1 captured Earth as a single pixel as it left the solar system in 1990, astronomer Carl Sagan used the image to reflect on humanity's fragility and the responsibility to protect 'the only world we've ever known.'

Prince's sexually explicit 1984 track 'Darling Nikki' attracted the ire of the Parents Music Resource Center, an advocacy group that inspired the Parental Advisory sticker, even though the song ends with a Christian message.

This poison ivy knowledge quiz—accompanied by photos of the plant's varied forms—may help you identify this common rash-inducing growth.

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO