Just a few links for where to find the wiz110sr replacement for the iHub, newlink, svlan.

Code:
http://www.sparkfun.com/products/9476

http://www.saelig.com/product/ETH026.htm

http://www.jameco.com/1/1/46404-wiz110sr-plug-play-type-serial-ethernet-gateway-module.html

http://www.karlssonrobotics.com/cart/wiznet-serial-to-ethernet-gateway-wiz110sr/?gclid=CPOZm7va-rwCFaVQOgod4DkAzw