I reviewed books regularly on Amazon years ago and made it into their top 10,000 reviewers list. Ever since then, I regularly get emails from Amazon sellers asking me to review their products. Before Amazon introduced the "verified purchase" system, they would offer to send me the product, now they ask me to buy their product and they'll refund me on PayPal.

I still get a few emails every week, even though it's been years since I reviewed anything and I'm now reviewer #1,263,485.