Per sunny:
These types of links are spam/unnatural for penguin:

1. Blogroll/Sidebar Links - through out site (as they seem to be paid)
2. Off theme links/ Non-niche and irrelevant sites
3. Direct links from Paid Link Networks
4. Hidden Links
5. Irrelevant anchor text
6. Existence of link exchange page
7. Too much comment links
8. Dofollow Affiliate links
I feel like a old head now.
Pockets, Im up to $400 a month!!!!