Whether these sites will be Google killers Just see the silde show! http://www.inc.com/slideshow_INC/sl...le=0&cycle=on&slide=3&design=default&total=15
A competition makes things develop. So if this ever gets close to Google we shall all see only the good.
We webmasters would have a much better life with Microsoft coming up in a strong presence to online advertising business.
When there is competition the scope of improvement comes into picture. When monopoly is broken quality is one that matters for decision.. and I don't think Google is low in quality... they are good and they are open to new things and ideas... but still this option will keep good things coming in. All sites are different in their approach it will take years for them to reach google's 50%.....