One free account lets you see who owns what, message them directly, get an email when a week you want opens up, and post your own weeks if you ever want to. The site admin reviews each request individually. Please allow up to 24 hours for approval.
You can still look for extra weeks too.
On your phone (Facebook app): tap your profile picture to open your profile, tap the three dots near your name, and choose Copy link. Then come back here and paste it in the box.
On a computer: go to facebook.com and click your own name to open your profile. Copy the web address from the top of the browser. It looks like facebook.com/your.name and that whole address is your link.
Recording a week confirms you're a real owner and reserves your claim on it, so nobody else can claim the same week. That on its own does not put it up for rent. If you'd like to offer one, say so on that line and it goes up as soon as your account is approved. You'll only hear from people about weeks you choose to offer.
Two or three quick questions, just so we know you're a real owner. Rough answers are fine.
Your submission is in the review queue. You'll get a confirmation email once it's live on the calendar.