Journal-Ranking.com is perhaps the first online journal ranking system in the world which allows any individual to conduct citation analyses among more than 7000 academic journals with regards to his/her own interests. Besides classical statistics on citation quantity, the system also allows taking citation quality into consideration after extending on the well known PageRank method, which has been successfully applied to evaluate the impact of web pages by Google. Journal-Ranking.com was developed by Red Jasper Limited and the Hong Kong University of Science and Technology. The system underwent a soft launch in June 2006 and has been successfully deployed in 2007. The website has registered an average of a million hits per month since its official launch. This paper explains the development and design of Journal-Ranking.com and its impacts to the global research community.