"CensusScope is an easy-to-use tool for investigating U.S. demographic trends, brought to you by the Social Science Data Analysis Network (SSDAN) at the University of Michigan. With eye-catching graphics and exportable trend data, CensusScope is designed for both generalists and specialists." It includes state, metro area and county data going back to 1980 or even earlier for things such as population growth, race, age structure, family structure and income.
Also check out Dataplace, which creates interesting maps and charts of states, counties and cities showing, by Census tract, the homeownership rate, poverty rate, unemployment rate, vacancy rate and the percent of housing units that are overcrowded. It's slick but still "beta," meaning it's still being developed.
You don't have to admit to anyone you need help using computers just like your pre-TV era grandma, but AARP offers 7 "Basic Web Lessons" to get you up to speed on what any 6 year old already knows.
Electronic Discovery Law is a blog for lawyers on "legal issues, news and best practices related to the discovery of electronically stored information."
The Memory Hole has posted lists, in Excel format, of more than 500,000 Air Force historical documents that "cover almost every aspect of US military history from the 1920s to the early 1980s." The list was generated as a result of a FOIA request from researcher Michael Ravnitzky.