strip: //*[(@id = "featured")]

author:substring-after( //div[@class='posttitle']/h2[@class='author'],'by ')

date: concat(//div[@class='month'],' ',//div[@class='day'])

#macstories doesn't provide a year, but month/day is better than nothing
test_url: http://www.macstories.net/news/instapaper-4-0-available-completely-redesigned-ipad-ui-new-features-search-subscription/