Yeah, everybody knows about this one, but it is still worth highlighting: Attrition Dataloss Database. Have you lost a laptop with 53 gazillion credit card numbers lately? :-)
Examples from their "Ten Most Recent"
"1. American Family Insurance - [2006-09-13](Stolen laptop contains over 2,000 customer Social Security and drivers license numbers) [archive]
2. Telesource - [2006-09-11](Social Security numbers and other personal information found in dumpster) [archive]
3. Cleveland Clinic (Florida) - [2006-09-08](Social Security numbers, dates of birth, addresses and other details of 1,100 patients stolen) [archive]"
etc, etc, etc...