strip: //*[(@id = "featured")]
author:substring-after( //div[@class='posttitle']/h2[@class='author'],'by ')
date: concat(//div[@class='month'],' ',//div[@class='day'])
#doctac doesn't provide a year, but month/day is better than nothing
test_url: http://www.doctac.com/mac/iphone/instapaper-update-app/