Allison Hendrix, from Facebook's Platform & Promotions Policies team announced yesterday that you can now administer a promotion directly from your Page. This means you can now have people:
- submit entries by liking or commenting on your post
- submiting entries directly on your Page
- submitting private entries by messaging your Page
You can now announce winners directly on your Page Timeline, so you can have them come to your Page at specific time for winner announcement.