Associated Press
The Associated Press has added a new entry on retweeting to its social media guidelines. Staffers are reminded to keep their opinions to themselves.

Retweets, like tweets, should not be written in a way that looks like you’re expressing a personal opinion on the issues of the day.

Disclaimers -- like "retweets do not constitute endorsements" -- do not protect AP staffers if they violate these guidelines.

Previously, the guidelines -- which were last updated in July -- said simply that staffers "are welcome to retweet and share material posted by official AP-branded accounts on social networking sites (e.g. @AP, @APStylebook, etc." Below read the full update from Tom Kent, AP’s deputy managing editor for standards and production, and responses to the announcement.

RETWEETING

Retweets, like tweets, should not be written in a way that looks like you’re expressing a personal opinion on the issues of the day. A retweet with no comment of your own can easily be seen as a sign of approval of what you’re relaying. For instance:

RT @jonescampaign smith’s policies would destroy our schools

RT @dailyeuropean at last, a euro plan that works bit.ly/xxxxx.

These kinds of unadorned retweets must be avoided.

However, we can judiciously retweet opinionated material if we make clear we’re simply reporting it, much as we would quote it in a story. Colons and quote marks help make the distinction:

RT Jones campaign now denouncing smith on education: @jonescampaign smith’s policies would destroy our schools

RT big European paper praises euro plan: @dailyeuropean “at last, a euro plan that works” bit.ly/xxxxx.

These cautions apply even if you say on your Twitter profile that retweets do not constitute endorsements.