blogger.com (or wordpress.com)
Use it if… You’re willing to spend time updating a blog with stories, photos, and videos. Family and friends won’t get updates e-mailed to them, but if they check in often, they’ll want new content.
Best features: You can customize your blog with graphics, fonts, and more, and you have room for 8,000 words on baby’s first foray into carrots. Visitors can leave comments on each entry―perhaps little notes to your child.
How private is it? Most blogs are public. You can make them password protected, but then every friend will need the password.
Check it out: blogger.com or wordpress.com