FOUR YEARS AGO, I read some of William Gibson's thoughts in the New York Times. Gibson wrote that it has become difficult for anyone--anyone at all--to keep a secret. Four years ago, my first entry on Typepad said, "in the age of the leak and the blog, of evidence extraction and link discovery, truths will either out or be outed, later if not sooner". Since that time, I've uncorked a few secrets from old negatives and slides, sharing dozens of them on Flickr. I'm doing it as a kind of digital foot locker that sits in my dusty attic of memories, knowing that sometime in the future, one of my daughters might enjoy knowing more about me and the places people never knew I visited.