Broadwing's Cincinnati Bell subsidiary hopes to tap the software to measure results of campaigns, but is still just breaking in the project calendar.

FORBES: Junk Mail Bytes It

Clavius started his career by taking on the reform of the Gregorian calendar, a project partly inspired by Copernicus and his book.

FORBES: A Long Forgotten Father of the Scientific Revolution

If you love Page-a-Day calendars as much as I do, check out the Page-a-Day calendar for The Happiness Project.

FORBES: Warning: Blatant Self-Promotion.

The key development was online collaboration: Put something down on your calendar or memo, and everyone involved in the project can see it right then.

FORBES: On The Cover/Top Stories