[sniperhiga]

I belive that you can get ranking without links only when your content on the same level as can write professor of "Massachusetts Institute of Technology".
It should be something like w3 content.
Also, if you own store which sell electronic / computers with 1000s names with bunch numbers, technic words, rich description... you can get 1000s daily unique visitors from Google having 10-20 backlinks. Millions around the world type something like "Affordable Dell Laptop Keyboard 81415 black colour easy to use" or "Canon EOS Digital Rebel XTi / 400D 10.1 Megapixel Digital SLR Camera Body Silver cheap price easy to use" etc....