www.seofree.net

1. Reciprocal link request pages. 2. No Privacy policy. 3. Outdated copyright date or last modified date visible on the pages. 4. Error pages that don’t send 404 headers or send content regardless of the page requested/query string entered. 5. Massive numbers of incoming links from link farms. 6. dead/404ing links. 7. High link churn. [...]