Change seems to come in small steps. So it is with the use of photography and clip art in my conference material. It wasn't that long ago that I was sending my material to Molly (the freelance graphic designer I usually work with) by cab. The courier wasn't cheap. But even more costly was the time it took to deliver my raw material to her and then wait for her material to come back to me to proof.
Only two years ago I was sending her my copy by e-mail. Proofs would come back to me by