Sorry I don't have a link on hand, but do a Google search on Workamper News. They list workamping jobs for RVers in nearly every state. Some are for money, others offer only site and utilities. In addition to the magazine they publish, they also have a service which enables you to publish a resume online which employers may view. They also send daily e-mails of upcoming job opportunities as part of that extended service.
Our favorite workamping job was at Adventureland in Altoona, Iowa, a suburb of Des Moines. We planned to work one summer and ended up working there six summers. This Disney-type amusement park wants Grandmas and Grandpas to run their rides, staff their food concessions and work in their "Main Street" stores. They employ 500 RVing couples each year, provide a modest wage, almost-free camping (beautiful park) and free electricity. The best parts, however, are the good friends you meet and the fun you have when that many RVers are in the same campground.
Margi