I hope you will be able to use "Clip Art Comparisons and Teachers Pay Teachers" as a valuable resource when you create products at TpT.
I truly believe that it is your product's content that will bring you repeat customers. However, bright colorful TpT cover sheets will get your products noticed on Pinterest. If buyers notice your product while wading through the thousands of products at Teachers Pay Teachers, you will hopefully get increased sales.
I will be adding new clip art companies to this list. "Follow me" at http://www.teacherspayteachers.com/Store/Victoria-Leon/ and you will be notified when I have revised this free product with the responses from new clip art companies.
If you are a clip art company, feel free to fill out the enclosed questionnaire and email your information to firstname.lastname@example.org. You may also email me if you would like to update any of your responses.
Wishing you the best at Teachers Pay Teachers,