Timothy Patrick Farley (born August 12, 1962) is a computer software engineer, writer and instructor who lives in Atlanta, Georgia.

Tim Farley is the creator of the website What's The Harm?, a resource where stories are documented and categorized about the damage done when people fail to use critical thinking skills.

While in high school and college, Farley was involved in Star Trek fandom and wrote for[1][2] and edited[3] several fanzines.

He has worked for several Atlanta-area software companies including SemWare,[9] Magee Enterprises,[10] Internet Security Systems,[11][12] and SPI Dynamics[13] among others.

[34][35] In an interview with Richard Saunders on the Skeptic Zone podcast, Farley discussed how he wanted to try to stay focused on "concrete stories of people that actually got hurt" that he could cite with some kind of "decent documentation".

He stated that he wanted to keep the format simple so that anyone could comfortably access the stories, on any browser with no flashy videos.

[51] Speaking at TAM 2012, Farley urged the audience of skeptics to become more involved spreading critical thinking on the Internet, just a few minutes each day.

He listed many new software tools that are available on the Internet for free and are relatively easy to use, and he reminded the audience, "Our opponents are doing everything they can to push nonsense on the general public."

In his final advice to attendees he stated "Spread out – Pay attention – Stop wasting your online time.

[54] Markuze, using the name David Mabus, was responsible for a campaign of online threats against skeptics and atheists for many years.

Farley, who had been threatened, stated for the Montreal Gazette that he believed Markuze had continued his threats against atheists right up to his sentencing.

He gave a presentation at The Amaz!ng Meeting 6[broken anchor] in July 2008 entitled "Building Internet Tools for Skeptics.