Be a Guide

About.com wouldn't work for every writer. But those I've heard from that write for them really enjoy it. The gig would be especially helpful if you are trying to build a platform in a narrow subject. Warning though, the application process is very long and takes quite a bit of time. Here's one ad, but they routinely have a number of guide jobs available.

About.com Seeks Part-Time Health Writers - Contract (Comp: $725/month to start, additional payments based on page views) (telecommute): Our Guides are doctors or nurses with direct clinical experience in their topic, and we encourage people with direct clinical or research experience to apply. To submit an application, learn more about About.com or see our full list of available topics, please visit http://beaguide.about.com/.