To identify popular and relevant questions, Twitter is developing a number of ways to identify the most common and representative questions.

WHITEHOUSE: Press Briefing

The three studies will constitute a representative sample of common and specific mechanisms related to the social movement of women and gender-based violence in West Africa.

UNESCO: MEDIA SERVICES

According to the singer's representative, Crow was diagnosed with meningioma, a common type of brain tumor.

CNN: Sheryl Crow: Brain tumor is a 'bump in the road'

We are slowly but steadily withdrawing the all important "consent of the governed" and demanding that our political leaders recede back to the representative status envisioned by the Constitution, and by Thomas Paine's Common Sense and by the Declaration of Independence.

FORBES: Magazine Article

Stemline has granted the representative of the underwriters a 45-day option to purchase up to 497, 647 additional shares of common stock from Stemline to cover over-allotments, if any.

FORBES: Stemline Therapeutics Announces Pricing of IPO