I was reading this post from The Krazy Koupon Lady about companies that send products to test for free.
It looks like I am going to have to check into some of these opportunities. Though I  did find some on the list that I have used.
I have tried
Pinch Me
BZZ Agent
Vocal Point
She speaks??
Houseparty & Chatter box
*Gm Advisory Panel
*McCormick product tester
and all you reviewer (no longer exists) 

The ones that I have had the most success with are Pinch Me and Bzz Agent.   I am recently having good luck with Pupfluence testing products with our dogs and reviewing them.
I will be updating this list in an ongoing basis about my experiences with various companies.
Do you have a company that you receive products to test out? Any influencer programs that you really enjoy participating in??  Comment below.