In honor of today being International Digital Preservation Day, our colleagues at the Digital Preservation Coalition (DPC) have produced what they call the "Bit List" of "Digitally Endangered Species". This is actually a fascinating survey of how well we are doing at preserving various kinds of digital materials, why specific types are at greatest risk, and similar issues. The overview page can be found at

and divides the survey into Concern, Lower Risk, Vulnerable, Endangered, Critically Endangered, and Practically Extinct.

Very much worth looking at. If you are not familiar with the work of the DPC, they have produced many valuable reports, and it's also worth spending some time exploring their site.

Clifford Lynch Director, CNI