Buttons by Sascha Pohflepp is a “camera” without a viewfinder or a lens. Instead of taking a picture as you press the button, it shows you the last image shared by someone else on Flicker.

I think this idea is really great, but also quite disturbing. It should make you think one more time what you can [...]

Fooled by marketing – again
A lot of people believe that their camera phone is actually a camera. They assume that a mobile phone with 3.2 megapixels and a Carl Zeiss lens is a great camera.
Film based cameras compared to digital cameras
I think it is fair to compare an analogue and a digital Single-Lens Reflex (SLR) [...]

I am often asked about a good book for learning Photoshop, so here it is once and for all.
My experience with Photoshop is professionally as a designer from version 4 and up since 1996, and before that as an amateur since version 2 in 1992.
When I got Adobe Photoshop for Photographers at work a while [...]

Personal experience
A colleague and I did a large project involving green screen photography last year, and here are a few words about what we learned from that experience.
There are quite a few sites with blue- and green screen tips and tutorials out there, but most concentrate on video, which is a little different from photography. [...]