Author: Barbara Ortutay, Associated Press

Twitter said it wants both experts and non-experts to write Birdwatch notes. It cited Wikipedia as a site that thrives with non-expert contributions.

Anyone wanting to run ads pertaining to elections, politics or social issues must confirm their identity and prove they are in the U.S.

The FTC has been looking into whether Facebook broke its own 2011 agreement promising to protect user privacy but has not announced any findings yet.