Affiliate Marketing Secrets

I found an affiliate program of weight loss: http://made4probiz.com/websucces/
do you think that is a good niche?

so I tried to download something from filesonic a few seconds ago and it said that you cant download from filesonic only if the file belongs to you then you can retrieve it.
I tired google why and all I could find is that:
“as of Jan 22th, Filesonic officially close the affiliate program and all functionality on FileSonic is now disabled”
so does anybody knows WHY is filesonic being shut down or isnt working?
is it temporary?

Is it better to join an affiliate network or is it better to do all of the work yourself and directly
join each individual company’s affiliate program?

Alta White®
Alta White® Teeth Whitening Affiliate Program: This patented dental whitening system begins washing away coffee, tea and other hard-to-remove stains after only one use. A unique 2-step process releases free oxygen to oxidize and lift organic stains away from teeth. Reveal your new whiter smile in as little as 6 days.
Very useful page that helps make the boldness to smile 🙂
Link : bitly.com/Healthy-Teeth

Hello,
I’m a travel tour operator in Morocco, i have a website and i want to create an affiliate program for my travel packages, people who can promote them and get me eventual customers, can you tell me from where to start ? how can i find and hire affiliates ? Thanks a lot

idk