A&E Television
History.com: The World Trade Center, by the Numbers
When the World Trade Center's Twin Towers opened to the public in 1973, they were the tallest buildings in the world. Statistics: They rose a quarter-mile in the sky, contained 15 miles of elevator shafts, and nearly 44,000 windows. From...
Employment Spot
Employment Spot: Employment Resources
EmploymentSpot.com was designed to simplify the search for the best employment and career resources online. Quickly and easily find the great job-hunting sites, salary and benefits information, resume- and job-posting opportunities,...
US Department of Education
Oeri Publications Guide: Dashes and Hyphens [Pdf]
This article contains information regarding the em-dash, the en-dash, and hyphens. Many examples are included. Site is extremely detailed and thorough.