Let There Be Light

Captchas are widely used in the Internet to differentiate between humans and computer. The basic idea is to detect automated programs by using a simple challenge that supposedly any human would be able to respond and subsequentially deny service.
Recent research on this area is focusing on exploiting these “human cycles” for meaningful human computation. […]

Citeseer contains a list with the estimated impact of publication venues in Computer Science up to 2003. The parameter that determines impact is the average citation rate over all articles in a given year. Self-citations do not count.
Microsoft Libra seems to be more up to date (at this moment until […]