6.-- Facebook (FB) will begin selling video advertisements later this week, The Wall Street Journal reported, citing people familiar with the matter.

The ads will play automatically in users' news feeds. Facebook plans to make the announcement on Tuesday and the ads will begin on Thursday on users' feeds both on the Web and on smartphones, the people familiar with the matter told the Journal.

How long the ads will be is unknown, the Journal said. The newspaper previously reported Facebook planned to offer ads of up to 15 seconds on both smartphones and the Web.

7.-- GlaxoSmithKline (GSK), the U.K. drugmaker, will no longer pay doctors to promote its products and will stop tying compensation of sales representatives to the number of prescriptions doctors write, the company's CEO, Andrew Witty, told The New York Times in a phone interview.

The announcement appears to be a first for a major drug company, the Times noted, and it effectively ends two common industry practices that critics have called conflicts of interest.

The change comes months after GlaxoSmithKline was hit by an ongoing investigation of alleged bribery by its employees in China.