On-site web Spam factors

1. Panda penalty
2. Links to bad neighbourhoods
3. Re-directions
4. Pop ups and distracting Ads
5. Site Over Optimization
6. Page Over Optimization
7. Ads above the folds
8. Hiding Affiliate Links
9. Affiliate sites
10. Auto Generated Content
11. Excess Page Rank Sculpting
12. IP Address flagged as Spam
13. Meta Tag Spamming