How to effectively market Twitter followers?

Which are the best possible ways to attract new customers through content?

If you are an app developer then where would you sale your work? I have looked for freelancer and Upwork but haven't found much developers either they are super costly or inexperienced.

In a wordpress scripted blog where a sign up form should be fitted. At the sidebars, footer or at the header right below headline?

If you are building links through PBN's then how many links would prefer from them, either private or public?

Hello everyone. Please let me know what kind of strategy to adopt for the off-page SEO. Kindly let me know the latest techniques and tasks.
Thank you.

I just want to know about it Blog or Website, Which is better for Adsense, Please share your view ?

A lot of small businesses who have placed their trust in an SEO agency, only to have their sites all but destroyed through wrong techniques. So, should you don't trust all SEO Company? No, That will be wrong, because all not the same, but yes, you should grab everything about the company before you get any services from it.

Can Reddit be used as a KW finder? I got this crazy idea about Reddit. So, here it goes. Can it work?

Are the sponsored posts considered as spam for link building?