Ask HN: How to sell a small Internet business?

I developed in a small internet business for some friends that makes about $1,000/month at the moment by connecting performers (artist, musicians, educators, etc.) with libraries and schools for their child and adult programs. The founders are done (for non-business reasons) and the business needs to be sold. However, the price is too low for a business broker. What is the best way to sell a small business like this? If you need more info on the business it is unboundbooking.com