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Federal taxes are somewhat complicated. Learn about how federal taxes work at HowStuffWorks.

Modern UFO history began with the 1947 UFO sighting by pilot Kenneth Arnold. Learn the history of UFOs from ancient times to the mid-20th century.

Hulu lets you watch TV shows and movies online for free. So what's the catch? Is there a catch? See how Hulu works and Hulu's challenges.

Casinos bring in billions of dollars in revenue each year. Learn about casinos and find out how security keeps casinos safe and fair.

Project Sign was the first major government UFO investigation project. Read how Project Sign began and the history of UFOs and the U.S. government.

Data plans are precious ... and finite. So knowing where to get your WiFi fix matters. Learn about a few places to find WiFi at HowStuffWorks.

Charles Manson captivated the world after his murderous spree in the late '60s. What made this cult leader so mesmerizing? Find out at HowStuffWorks.

The 1955-1957 Chevrolet light-duty trucks featured an all-new elegant body style and mechanical improvements like a small-block V-8. Learn more.

Marilyn Monroe starred in the film 'How to Marry a Millionaire' along with such stars as Betty Grable and Lauren Bacall. Learn more about her role.

Marketing plans help your product or service to reach a broad audience and really sell. Learn about how to create a professional marketing plan.

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