Abstract: This disclosure relates to systems and methods for determining source information for subscribe and unsubscribe events to channels, indicating referring sources from which subscribers initiated the events, and presenting the source information to content providers of the channels.

Abstract: A content request, storage, and configuration system is provided which associates pieces of content with one or more keywords, and configures the content for the benefit of a user. Users load content into the system or link content elsewhere to the system, and optionally designate a set of actions to be taken. Keywords are assigned to the content and actions by the system based on user input and/or auto-generation by the system. Any of a variety of methods, including but not limited to Short Message Service (SMS) and instant messaging, are used by a user to communicate these keywords to the system, to indicate user interest in the associated content. Receipt by the system of the keywords from the user triggers the system to retrieve the relevant pieces of content, associate said content with the user making the request, and to take the designated actions if appropriate. In addition, users may designate that the system retrieve the relevant pieces of content and associate said content with other users.

Abstract: A search-based email client may incorporate a number of useful features. A search function can default to a search of all email contexts, thereby eliminating user cogitation over which context an email message may be stored in. Furthermore, the search function can automatically search for related personal content and/or related information on the internet or other computer network, and present this useful information to the user in addition to the returned emails. The search function can be integrated into a user interface to allow for one-click searches on any likely search field. The search function can search the body of email messages by default, thereby widening the scope of default searches and eliminating potentially missed information and user need to proactively widen their search. A search function can search attachments, which also provides a wider search scope.