The Spark Reviewer program was an invitation only reviewer program that Walmart ran. It was like the Vine program by Amazon, with a few operational differences. The premise was the same, they offered a selection of product to review on the Walmart site and you were required to have the reviews done in a certain amount of time after receiving the product.
But it (for whatever reason) ended last March (2016). All of us who were in the program received a letter on March 25th which read like this:
Dear Spark Reviewer,
Want to learn more about reviewing? Check out my blog archives!