Does date published on a content important?

It looks like there is a big update just starting to happen in the Google search results this morning. It is super early but based on the initial chatter I am seeing within the SEO community, this one might be a very big one. It is so early that most of the tracking tools aren't even picking it up yet. But the chatter within the community looks to me that this might be a big Google search update.

Why big? Just based on the number of posts and what they are saying within a short time period. It can be some weird Google bug or it can be a new algorithm update that is causing a shift in the core rankings in Google.

The domain is about 5 years. And has some good links. But the content is outdated. Should we start a new blog or just republish the old content.

Can anybody here provide us some?

What should be my budget for Bing Ads in Digital Services niche?

Has anyone tried it for CPA offers?

How to identify Facebook fake likes?

Where to find content copywriting jobs so I can earn a steady and a stable income?

We have considerable amount of Pinterest traffic. Around 500k views and around 15k traffic. They are all targeted and organic. So, we were think maybe we can monetize the traffic. But most people are suggesting that its a social networking site so how its going to do any good. Do you guys really think its possible to monetize it or as like others say its pretty much worthless. We have plenty of ebooks so if we can sale them through it then we will make much profit. And that's the idea.

Say one site of ours have several different newsletter service and they are on different levels. So, we were thinking that if we prefill the email addresses with the email ids which they have already provided just like a browser. So, they can just hit send button and get subscribed to the newsletters.