The top earners of all my sites are the online stores.
eBay is at the top, Zazzle.com Cafepress.com then Amazon and Etsy. Bear in mind I have had an Etsy store for only two weeks, so its a baby yet.
eBay of course is not really a residual income source as along with Etsy I have to find or make goods to sell and actively ship them.
Among writing sites my ranking is:
Yahoo! Voices is a far away leader its CPM model and purchase of my articles produces more cash than any other. Follow this with List My 5, it has a CPC model but pays quite well there were only two months last year (2012) April and July that I earned no money from my short lists. HubPages is a pretty poor third and Squidoo I have given up on that for any income.
Cash from blogs?
No I mainly use my blogs to direct people to my cash paying sites and don't use AdSense on my blogs at all.