One-way links on monthly basis from Google PR4+ pages.
1. The links must be permanent.
2. Must be manually submitted.
3. Only serious links. No hidden links, link farms, blogs, forums.
4. Must be from different IP addresses.
5. At most 30 outbound links per page.
6. No googlebot restrictions.
7. Static links only.
8. PR4+ on the link page itself, not on the top domain.
9. the links must come from gambling sites.
10. Detailed report needed.