Original: Mike Linksvayer , Google Code adds content licensing ; Google Knol launches with CC BY default , Creative Commons Blog , July 23 , 2008 Knol employs '' nofollow '' outgoing links , using an HTML directive to prevent links in its articles from influencing search engine rankings .
Simplified: Mike Linksvayer , Google Code adds content licensing ; Google Knol launches with CC BY default , Creative Commons Blog , 23 July 2008 Knol has '' nofollow '' outgoing links , using an HTML directive .