All this from a short article in the Style section of the NY Times (Pamela Paul, "Does Facebook Make Someone Social Offline?").....
Not at all surprisingly ......
Men, more than women, are more likely to post political (49% / 36%) and religious (51% / 43%) musings on Facebook*. And, although women, more than men, show emotion online, women and men are equal (more or less) in their online updating, sharing, etc. of their relationship status.
*I do no do Facebook or anything like it, so I do not know of what I speak.