heres what i do
i mix a little black/gray hat methods and go for the quick hit. i build squidoo and hib pages then i make them really keyword dense like 6-10% then i make like a ton of blogs, i mean a TOOOOON and then i add 10-15 links in each of those blogs using the anchor text that im targeting (which by the way is usually and extremely long longtail keyword). then i get back links to the squidoo and hub pages and then i get backlinks to the ton of blogs i made. i target about 3 keywords per project. it lasts for about 3 weeks sometimes longer sometimes shorter, sometimes it doesnt work at all. normally it does but when it does work you can easily create 5, 10, 15 thousands marketing 1 clickbank product...
i wont tell you how i make the blogs, or get the backlinks thats for you to figure out...i will say that they only "manual" thing that i do i creating the squidoo and hubpages. hope this helps