My eHow payment for August 2008 will be $617.35 USD, the highest eHow earnings I've ever received. I currently have 191 published eHow articles (and 7 pending approval). However, 12 articles were published the last week of August and have not yet earned anything. Thus, with 179 earning articles in August, they averaged $3.45 each this month. That number should keep going up as recent articles from June, July and August are indexed by Google and begin to receive more views.
There is some debate as to whether eHow earnings can be considered truly "passive," or whether promotion and continued work is necessary to create and maintain earnings. My experience shows that, because of eHow's superb search engine rankings, its daily traffic and the social aspects of the site itself, little or no promotion is necessary to yield high earnings assuming basic keyword optimization, search engine optimization and quality content.
I am planning a test of this residual income stream, this December and possibly beyond. I'll take the entire month of December "off" eHow to focus on my other writing, and see how it goes. I predict my articles won't even miss me.
Until then, I'll be researching keywords and writing more articles.