In 2007, Trent Lott, a Republican leader in the Senate less than a year into his fourth term, abruptly resigned and formed a lobbying firm with former Senator John Breaux, just a few weeks before a new law took effect requiring a two-year waiting period between serving and lobbying.

NEWYORKER: The Empty Chamber

Merck's (nyse: MRK - news - people ) decision is based on new three-year data from a clinical trial designed to test the effect of Vioxx on preventing colorectal polyps.

FORBES: Merck Withdraws Vioxx

New sunscreen labels in effect this year require a pass-fail test for UVA and UVB protection.

WSJ: European Sunscreen Roadblock on U.S. Beaches

California, Illinois, Maryland and Michigan adopted social-media privacy laws last year, and a similar new law in Utah takes effect in May.

WSJ: Wall Street Battles States on Social-Media Protections

As for solidarity, adoption of the fiscal compact is her condition for granting new bail-outs under the permanent euro-zone rescue fund coming into effect this year.

ECONOMIST: Charlemagne

Indeed, the company faces another challenge later this year when New York City's ban on the use of trans-fats goes into effect in July.

FORBES: McDonald's Arches Still Golden

Throughout the 2000s, there were no one-year percentage increases in revenue that even approached the 64% increase generated from the new stadium effect.

FORBES: Ray Lewis' $100-125 Million Impact on the Growth of Baltimore Ravens Franchise Value