To properly provide a portal site.

A home server 21 registers and holds taste information of users A and B in a taste information database for each user. The home server 21 performs Web search on the Internet 12 based on the taste information registered in the taste information database 31 and holds information about the Web site acquired as a search result in a Web site database 32 for each user. When a new Web site is searched, the home server 21 notifies the fact to a portable terminal 11.