Link based spam analysis techniques-question

Hello!

I have a short question. Which techniques do you use to perform a link based spam analysis? How do you "hack" penguin?

Thank you for answers.

Have a nice day!

Best regards,
Ivry.

Disclaimer: I need something else than anchor text ratio technique or relative mass.

@IvryMair - there is many algorithms used by Google and explained in Google patents.
If you planing to be the real SEO expert - you should start read the Google patents.

Because you not will find such knowledge at any blog, especially popular known.
But for good entertaiment mentioned blogs are fine.

Cheers, Greg.