More info: Mahalo.com (Wikipedia) Q&A with Jason Calacanis, Founder & CEO, Mahalo.com. (searchenginewatch.com) Mahalo.com - An About.com/Wikipedia Hybrid (russellheimlich.com).
I also signed up for Mahalo.com's Fischerandom topic. Contributors are only allowed two topics each, so I've reached my limit. I'll update the Mahalo pages at the same frequency I update my related blogs, which is once a week.
Later: I worked on the two topics over a period of 2-3 weeks, became frustrated with the tools, and abandoned the effort. It took Mahalo about six months to open the topics for someone else.