As long as you abide by the ToS, keep the site within the
resource limits, and remember to login to these forums at least once every 31 days to keep the account active, you can have the account for as long as you like.
Do note though that we only support sites in English, Spanish or French at this time. If you want to use any other language there must at all times be a full, manual translation, into one of those languages available and easy to find for staff when doing reviews.
You are allowed to place your own adds, commercial or non-commercial, to your site.