Tell your email list about it. If you have an engaged email list, and I hope you do, it will almost always outperform a blog post. You may choose to (sparingly) write a dedicated email about something you love, or just link to it as it fits naturally within your story. Or, add a P.S. to the bottom of your email if you have a special sale or coupon code to share.
And what about joining another company's affiliate program? It's all about extra revenue. Think about your customers' needs: What other products or services would interest your site visitors? Join those affiliate programs. Affiliate programs can increase your sales with no upfront cost to you. It just takes a little time to plan your strategy and select the partners that will have the greatest impact on your business.