Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
How Performance-Enhancing Drugs Work - It's Olympic time again, and the topic of performance-enhancing drugs will be back in the news. Find out what types of drugs athletes use, what their side effects are and how they're tested for.
How Aspirin Works - Feel a bit of a headache coming on? Muscle aches from yesterday’s workout too distracting? Cramps? Arthritis? Discover how aspirin and other analgesics dull the pain...and find out what else they're good for!
How Nicotine Works - Smoking or chewing tobacco makes many people feel good, even mildly euphoric. It’s the nicotine that produces the buzz. Find out how nicotine affects the human body and what makes it so addictive.
