A two-way wireless device and wireless internet system is adapted for interactive communications between a subscriber using a wireless device, a wireless server, and an on-line service using a web page for the input of information. Systems are disclosed for stock transaction trading wherein a subscriber, using wireless E-mail or a pager, interfaces to any one of numerous on-line stock trading services through a wireless server which uses agents, artificial intelligence software subroutines, which have been programmed to interact like a human using a web site, for E-mail alerts and stock trading.