there are different sources and indices around, itu has one as does the worldbank, just to name a few. the eu invented another one to measure the impact of information and communications technology on economic growth: connectivity scorecard

broadband study

academia europaea

recommende: giuseppe longo and his thoughts about negative results in research.

as well as bibliometrics and the curators of orthodoxy:

Have you ever seen the Citation Indexes (CIs) for the year 1600?

We present a framework for analyzing privacy and anonymity in social networks and develop a new re-identification algorithm targeting anonymized social-network graphs. To demonstrate its effectiveness on real-world networks, we show that a third of the users who can be verified to have accounts on both Twitter, a popular microblogging service, and Flickr, an online photo-sharing site, can be re-identified in the anonymous Twitter graph with only a 12% error rate. | arvind narayanan, vitaly shmatikov (via bruce schneier)