"One weird trick" (also "one weird old tip", "one weird old trick" or other variants) advertisements are a form of clickbait online advertising that has been common on the Internet since around the late 2000s. The formula used in the advertisements was first applied to weight-loss products but has since been extended to cures for problems including hair loss and diabetes. A Federal Trade Commission (FTC) investigation found that many of the advertisements sold "trial" packages that were never sent. The FTC filed legal action in 2011 against promoters of such advertisements for defrauding millions of people.
- Chumbox, an advertising format often displaying "one weird trick" advertisements
- Kaufman, Alex (July 30, 2013). "Prepare to Be Shocked!". Slate. Retrieved October 4, 2021.
- Clark, Taylor (January 2014). "Jesse Willms, the Dark Lord of the Internet". The Atlantic. Retrieved October 4, 2021.
- Farhi, Paul (July 6, 2011). "Ubiquitous 'tiny belly' online ad part of scheme, government says". The Washington Post. Retrieved October 4, 2021.
- Tsouderos, Trine (March 22, 2012). "FTC cracks down on bogus online news sites that are actually ads". Chicago Tribune. Retrieved October 4, 2021.