SAN JOSE, Calif. -- They look so real ... unbelievable pictures like the one showing a man atop the World Trade Center right before the planes hit Sept. 11, 2001. On the seamless shot you can see an airplane approaching the building from behind the unaware tourist.

It looks unbelievable because it is fake. The designer used a photo altering process that begins with the popular program Adobe Photoshop and ends with a changed photograph. The treatment is popularly knows as "Photoshopping."

Bruce Goldfarb has taken his photo altered art online. At his site, Larrys Face, you can see pictures of his older brother, Larry, in various poses and locations that he never visited. The family joke has become an Internet cult hit. Before he knew it, 100,000 people a day were visiting the site and sending Bruce their own altered efforts -- inserting Larry's mug over all sorts of other famous and not so famous photos.

Many Web sites fuel the craze, like Fark, which regularly runs contests for Photoshop-altered pictures.

Altered photo hoaxes are often passed off as the real thing. So, be aware of what you see. If it looks too good to be true, it just might be false. Check out the Urban Legends Reference Page Photo Gallery for examples of some real, or not so real, moments.

How good is your "Photoshopping"? Right click and save the picture of Scott Budman. Use your imagination, talent and PC to create faux fotos. Do your best -- keep it clean -- and we might show your work on an upcoming episode of Technow! Email your finished product to Scott McGrew. Include your name and how you pronounce it.