In your opinion what are the best adjacent keywords that one should add along with the main or primary keyword to get more good results?

Fb Closed groups. Most of them need approval of the owners to start a discussion. Are they really worth it to drive traffic? I mean I can't just post my url there to receive traffic.

I am looking for sites or forums where I can find Content marketing or content copywriting jobs. Any kind of suggestions will be much appreciated.

Does buying PBN network worth the risk at all? I don't have much time to spend on building a bunch of web 2.0 site. So, I was thinking that may be I could but them from the services or hire someone to do that for me.

Which is the best way to make maximum money if I am getting the most targeted audience?

I am changing the placement of my content from a sub-domain to another sub-domain. I have plenty of sites linking towards them so how can I change those links to the new pages?

I am not sure about it but any thing like this exists, if it is then what is the effect of it on SEO.

If I want to promote any CPA offers of mine through facebook sponsored ads, then why I will be needing a landing page? I can directly lead to the CPA offers page.

Is it really a good idea to sale link building services or other SEO services on fiverr?? I mean a lot of people are looking for them in fiverr.

I have a few thousand subscribers in my social channels each and also have pretty great list of emails. So, I was thinking that if I can monetize them. I am willing to send my subscribers some recommended apps through which if they buy or download them I can get paid. Can someone suggest me such network?