Celeste uses stock photos frequently - she used stock photos to document some good things in her life right now:
I used photos from the Food Network website to document my family's obsession with the show Chopped:
Another option is to use screen captures to get images from your computer of websites. I used a utility called Gadwin PrintScreen to capture different websites that I use when reading:
That's it from me -- I hope this gave you a few ideas on how you can scrap those photo-less memories and stories!