from the Oink faq: Where are my invites? Regular users start with no invites. Donors get 2 invitations for their initial donation only. When users are promoted to Power User+ they receive four invitations to use as they see fit. As detailed below, Power User+ get two additional invites per month. If you have any invites, you should be able to see a link at the top right corner of the page with the number of invites left. To become a Power User+: Must have been a member for at least 2 weeks, have uploaded at least 10GB and have a ratio at or above 1.05. The promotion is automatic when these conditions are met. Note that you will be automatically demoted from this status if your ratio drops below 0.95 at any time.