Domains

i have a domain in my network and when i open my network neighbourhood i see all the computers in my domain. i installed a new domain in a diffrent network and configured trust relation ship.. but when in open the network neibhourhood i cannot seesystems in other domain, how can i do that..how to configure the networks such that..when i open my network neibhourhood i must see all my computers in both the domains and access the resources in cross domains