Search algorithms & popularity factors: link, social, click, blog, industry. Since modern search engines are concerned with popularity and not direct relevancy, & big firms up the price of text link buying beyond affordability...
Profilactic is a digital lifestyle aggregator that makes it easy to keep up with all of the content you and your friends create online. Aggregate all your online profiles. Mash up all your created content. Aggregate your friends' content. Clip and archive
...chimpanzees and bonobos also make liberal use of gestures in addition to the sounds and facial expressions that are part of their communication system...
Y. Ahn, S. Han, H. Kwak, S. Moon, and H. Jeong. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)
A. Capocci, F. Rao, S. Leonardi, and G. Caldarelli. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)
A. Dieberger, and M. Guzdial. From Usenet to CoWebs - Interacting with Social Information Spaces, Springer, London, Computer-Supported Cooperative Work.(2003)