study by Yahoo Research, a structure headed by Duncan Watts famous for research on "small world networks", sheds light on some interesting aspects of the use of Twitter. – an elite of 20,000 users (identified among the most cited in Twitter's public lists) is responsible for half of the tweets available to the 200 million subscribers (in defiance of the Pareto principle of 80/20) – after classifying the most important users into four groups, celebrities, bloggers, media and organizations, the researchers discovered that they tend to pay more attention to news in their own category (homophily).
The only exceptions concern organizations, which Brazil Phone Number are more interested in bloggers than in what is written by other companies, and the bloggers themselves who are not very self-referential and are more careful to characterize themselves as filters of information generated by other categories – the most tweeted contents are world news, US news and sports – news originating from the media has a short life cycle, while those coming from bloggers tend to remain longer in the "twittersphere". Furthermore, the most "long-lasting" links are those that point to videos and music.
Men (59%) far outnumber women, and the groups with the most members are those of 25-34 year olds and 35-54 year olds (both with 36%) The sectors with the most members are hi-tech (17%), finance (14%) and manufacturing (10%). The most present functions are those related to sales (12%), teaching (10%) and administration (10%). There are almost 1,700,000 Italians on Linkedin (in May last year there were around 1 million) and they are predominantly men (56%). The most represented ages are those in the 25-34 (42%) and 35-54 (39%) ranges. The 18-24 year olds are 15% and the over 55 year olds are only 4%. In our country the sectors with the most employees are hi tech (18%), manufacturing (15%) and finance (10%), while the most represented roles are sales (14%), teaching ( 11%) and engineering ones (10%).