Only once, and only to magazines. The pictures involved were the first of the BMI A330 taken in the UK. Basically, I scanned the images and e-mailed small versions of them to a number of magazines, and put a link in the e-mail to larger versions that I had uploaded to my own webspace (they weren't on airliners at the time). The pics were available for the mags to preview within 24 hours of them being taken. Included was:
Click for large version
Photo © Andy Martin
It worked too - Aircraft Illustrated bought!