I hate craigslist too, but find it to be a necessary evil. It is convenient. I don't like marketing, and I find that either I have to devote the time to developing a following or a network, or I just bite the bullet and come to the realization that I have the goats that I have for their intended purposes, and the kids that are produced are a necessary result, and they just go to the auction for whatever I can get for them. The time, money and work needed to manage them is the real issue, not how much I can get for them. When I had a larger herd it was an advantage to take the time to develop an outlet. Now with only a few animals, it's not worth it to me.
My state has a market bulletin with classified ads put out by the Department of Agriculture that is by subscription. You still get some whackos, but at least they are agricultural minded whackos, and a lot of them are filtered out by the subscription cost and the fact that it's not just as easy as replying to an email. It's not that expensive, and I find the peace of mind in not dealing with the entire internet world to be well worth it.
If you can deal with it, the ethnic community has a demand for goat kids. It's not without it's frustrations dealing with them either, but at least their interest in wanting goat kids is usually sincere, and they are focused on that alone, in my experience.