Other than my family, I only have a couple of friends that I talk with about money. Even then, our conversations are usually limited to vague references, and not actual numbers. I can see pros and cons to keeping money matters private.
- Less chance of jealousy if your financial situation is better than another person's
- Less possibility of embarrassment if your financial situation is worse off than another person's
- Less likelihood that someone will hit you up for a loan / try to steal from you
As you can see, I can argue both sides, however, I lean more towards wanting to talk about money - this blog, although anonymous, is a great example.
One exception for me when it comes to talking about money is discussing compensation with co-workers. I don’t do it and wouldn’t recommend it.