David and Kaspar discuss why Google algorithms are all about signal input.

Talking points include:

What is signal input?

How can SEOs control signal input?

Google seems to issue more and more penalties all the time. Should SEOs be worried?

Does Bing Search matter?

Does any other search engine matter?

Once the latest hype fades, what does really count in SEO?

What is hype and what is something that matters - and how do you tell the difference?

Performance or Backlinks - what's more important?