To add to this for people who own their own web domains - keep in mind that your domain ownership info is available online to everyone, unless you pay a company that does private domains (the company's info will appear in place of yours).

I own quite a few domains and post a lot of photos and info online, so I pay for a PO Box and list my PO Box as my address for all my domains. It's cheaper than paying for a private listing for each of my domains, and gives me a mailing address for anything where I don't want to give my home address.