Yahoo has created the Yahoo Time Capsule, what it calls the "first-ever electronic anthropology project" to document human life in 2006. You have about 29 more days to contribute to the time capsule, until November 8th, to be exact.
The Sydney Morning Herald has a story about the project.
You can learn more at Yahoo Time Capsule site, including how to submit your items in digital format by clicking on the "contribute" link at the top right.
I tried to submit an image but got the response, "sorry, but there was an error, please try again later."
More also from Yahoo in this press release.