If for whatever reason you are not comfortable sending a job announcement along directly to the list, drop me a line and I'm happy to send it along so you remain anonymously. Send me a link to the job posting and the job description and I'll take care of the rest.
The address to send a job announcement to (once you have joined) is opengovjobs(at)googlegroups.com.
We (okay, I) also keep a list of opengov employers that anyone can edit. If you're not listed or the info is not up to date, please feel welcome to correct it.
I gather a lot of these announcements by automatically tracking organizational websites. This can be a bit of a pain, so I encourage you to please create an RSS feed for your job announcements and let me know that you've done so. I will automatically track the feed and post announcements in case you get busy, or staff change, or whatever.
Otherwise, I am building website scrapers to pull down this information, which can be quite challenging and annoying for me. If your website is sufficiently complex, I may bypass you entirely. Not out of malice, but my own technological incompetence. So please help me. Thanks!