Email marketing & newsletter analytics. Track more than just opening & click rates. Beautiful statistics & reports. Easy to setup. Works with all email service providers.
E. Oren, J. Breslin, and S. Decker. WWW '06: Proceedings of the 15th international conference on World Wide Web, page 1071--1072. New York, NY, USA, ACM Press, (2006)
W. Xi, B. Zhang, Z. Chen, Y. Lu, S. Yan, W. Ma, and E. Fox. WWW '04: Proceedings of the 13th international conference on World Wide Web, page 319--327. New York, NY, USA, ACM Press, (2004)