Get Testimonials - Have a Q&A - Give titles to prior posts
 - Have a Call to action - Make it easy to see testimonials - Avoid  Boring 

Info.  Use Bullets - Make what they want easy to find and buy.
Sample Video  - Get interviewed on YouTube - for different topics - about products - Adjacent Ads - Video great SEO 
Free Web Site Submission - Submit to Bing- Yahoo -  Answers Questions on Yahoo
Finding a Niche - Create Separate Blogs For Each.  Consider Facebook Business Page
Get Material for Website/Blogs - Govt. Publications - Use Google alert
Google Alerts - Video  Get daily information about your niche.
Consider Pay Per Click ADs  - Good for Niche Products - Learn well and beat competition.
Give Away Free Stuff and They Come Back - Have them opt-in first - build mailing list
Placing Ads and Finding Products - many free listing services 
Join Forums Related to Your Niche -Offer information - Comment on Popular Websites 
-eBooks - Power Point Presentation
Sample eBooks on Amazon - Can sell  as affiliate and/or create your own