Has anyone use Chitika instead of Adsense in Bukisa?

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Some members in Bukisa doesn't have or cannot have a Google Adsense account; fortunately, Bukisa has another alternative which is Chitika. Is it easy to sign up in Chitika? Do you have any experience to share about this? I know lots of people prefer Adsense but it is also better to know how other alternatives can help blogger or writer earn from one's writing.