Abstract: A full-duplex communication channel is established between the server and a user device. A plurality of search results is obtained based on a request received from the user device. The plurality of search results is provided to the user device via the full-duplex communication channel. The user device is caused to display the plurality of search results in a first webview. A selection of a particular search result among the plurality of search results is received from the user device, via the full-duplex communication channel. Content associated with the particular search result is provided to the user device, via the full-duplex communication channel. The user device is caused to display simultaneously the plurality of search results in the first webview and the content in a second webview.

Abstract: A website accessible via a network to a first plurality of registered users is maintained, wherein the first plurality of registered users comprises a second plurality of paying members and a third plurality of non-paying members. Registration information indicating that a person has registered, status information indicating whether the person has registered as a paying member or a non-paying member, and referring member identification information identifying a particular one of the first plurality of users as a member who referred the person, is received. Referring member status information indicating whether the particular one of the first plurality of users is a paying member or a non-paying member is examined. A sum is paid to the particular one of the first plurality of user based on the status information and the referring member status information.

Abstract: A plurality of ratings associated with content accessible at a network address is received from a plurality of users, wherein each of the ratings corresponds to one of a plurality of content attributes. A combined set of ratings is generated fix the content based on the plurality of ratings, wherein the combined set of ratings comprises, for each of the plurality of content attributes, a combined rating value. A plurality of criteria is received from a user device, wherein each criterion corresponds to a respective one among a plurality of content attributes. A request to access the content is received from the user device. The combined set of ratings is compared to the plurality of criteria received from the user device. The user device is allowed to access the content if the combined set of ratings does not conflict with the plurality of criteria. The user device is prevented from accessing the content if the combined set of ratings conflicts with the plurality of criteria.