The first and most important thing to note is that Chitika advertisements aren't the same for everybody. They are geared towards much more data than what's on your page or website.
As a web content writer, you are likely to have clicked straight onto your site. You will not be seeing the advertisements as others do, unless they too have followed a direct link.
In this regard, promoting your article on social networking sites is great for publicity, but terrible for Chitika ad revenue.
These advertisements rely upon search words and phrases. So if, for example, someone has found your site by looking up 'fluffy bunny rabbits' in a search engine, then the ads will all be about leporidae in all their forms. But particularly the cute ones.
If this is what you wrote about, then it may appear that Chitika is being contextual. It's not. That fact becomes obvious when you have searched for several different things, before arriving at a page with Chitika adverts on them. Then there's an array of subjects, none of which may match the current web content.
For example, the other day I was writing about British Royal Diamond Jubilees and also about genealogy. I didn't need to look up either, because I'm surrounded by history books in my room. But I did need to know if anyone else on Wizzley had written about them. It's a matter of common courtesy to my fellow writers, and those reading our pages, if we're not repeating each other.
Eventually I came back to one of my articles to answer a comment. It was about a man facing the death penalty for writing a computer program, but none of the adverts referenced that at all. Instead they were all about history, royalty and genealogy.
Incidentally, I write about human rights a lot, so I've had plenty of opportunity to see what happens with Adsense in this situation. It tends to shrink to a single vague advertisement for a lawyer or else disappears entirely, depending upon the initial keywords. Advertisers generally don't like things like torture, death and injustice appearing next to their products!
Chitika can cope though, because its cookie has checked what else I'm interested in. We all leave a trail of temporary files behind, whenever we browse the internet, so the data is all there in our internet cache. The advertisements might not be relevant to the page, but they are a good match for the person reading them.
You can check out how search engine visitors are seeing your adverts by doctoring your URL. Type *your URL*/#chitikatest=*any keyword* into your browser window. This will imitate a query and change your advertisements accordingly.