For the second time in three months, The Times’s associate managing editor for standards sent a note out to the newsroom Wednesday morning warning journalists to avoid offering up their own political opinions through Twitter, Facebook or other social media. The standards editor, Phil Corbett, says no particular incident prompted the note.

By now, I find it hard to imagine that violators are unaware the policy exists. Maybe repeat offenders need a little kick in the pants.

Here’s Corbett’s note:

Colleagues:

As we enter the home stretch of the presidential campaign, all of us in the newsroom should keep in mind our longstanding policies on social media. On personal social-media accounts, Times newsroom staffers should avoid editorializing, endorsing candidates or otherwise promoting their own political views.

This applies to every newsroom journalist in every department. Even if you personally are not involved in coverage of politics, our colleagues are working hard to maintain The Times’s reputation for credibility and fairness, and we should not do anything to make their jobs tougher.

While you may think of your Facebook page or other social-media platforms as a private area completely separate from your Times role, in fact everything we post online is to some degree public — and everything we do in public is likely to be associated with The Times.

If you are linking to other sources, aim to reflect a diverse collection of viewpoints. Sharing a range of news, opinions or satire from others is usually fine. But consistently linking only to one side of a debate can leave the impression that you, too, are taking sides.

As I’ve noted before, people following Times newsroom staffers online expect them to be well-informed and thoughtful. But we should leave the editorializing to our colleagues on the Opinion side.

Let me know if you have any questions, and thanks.

Phil