LWN pays $300 for a well-written article from new authors
Many VPS providers are offering similar terms.  DigitalOcean has its Write for DOnations program (https://www.digitalocean.com/community/pages/write-for-digit...) which pays $300 for a new tutorial, for instance.  I'd imagine the cost must pay itself off, I've seen many people sign up for DigitalOcean because they wanted to follow one of the tutorials (even though you don't really need DO to follow them).