Online Photo Publishers: Stop Specifying DPI

I often get requests to supply photos for online publication or a contest where the editor specifies the dpi or “dots per inch.” It’s usually a certain number of pixels wide “at 300 dpi” or “72 dpi,” or sometimes all they ask for is “a 300 dpi image.”

But I’m here to tell you that those are nonsensical specs. Setting an image’s dpi* for online or screen viewing is literally meaningless.

Why? Because the image’s dpi is 100% determined by the screen it’s seen on. And nothing I do, no dpi setting, can change that. Continue reading


How to Build a Secure Online Presence

All the recent news of hacking, identity theft, and security breaches has gotten me really paranoid. If you’re not yet paranoid, read this story about a smart guy who had everything well protected and still got hacked:

So I’ve started my own personal security initiative to protect myself from hacking and identity theft. Here’s what I’ve done:



Your email provider is the weak link in all online security. Why? Because if a hacker gets access to your email account, they can go to the website of your bank, your broker, your PayPal, etc., claim that you lost your password, and have a new password sent to that hacked email address. Then they can change the password, letting them in and locking you out. Your email address is a gateway to a huge amount of online security.

There are several ways to strengthen that weak link: Continue reading