Personal information in resumes?

Just a general question ... in your opinion, is it a good idea to
include 'personal' information in a resume?

By personal, I'm talking about your marital status, number of kids,
social clubs you belong to, etc.

In the years I've been working, I've seen my share of resumes ... and
I've always thought it would be a bad idea to include personal
information.  Seems to me that (at least I think) many companies would
automatically exclude such resumes so they couldn't be accused of
discrimination.

I've seen resumes that, in addition to marital status; kids; social
clubs; etc, included religious affiliation; political party; and the
like.  Of course, I've also seen resumes that included bible passages.

On that note ... I'm wondering if it's even a good idea to include your
age (although, based on experience, it's probably trivial to guess a
persons age even if it's not included).

david