Abstract: An item-providing system supplies items to a user device for consumption at the user device via communication infrastructure. In one illustrative implementation, the communication infrastructure may rely, in part, on wireless communication. The device may correspond to a book reader device or other type of device.

Abstract: Simplified wireless device activation may be achieved using temporary and permanent numbers used to connect to a wireless service provider. In one implementation, an electronic book reader device includes a memory that contains a temporary number that may be used to connect to a wireless service provider. The temporary number may be replaced with a permanent number that is used to connect to the wireless service provider. This replacement may occur once the electronic book reader device connects with the wireless service provider for the first time. The permanent number may be used to connect to the wireless service provider after the initial connection with the wireless service provider has transpired.

Abstract: The system filters-out undesirable email messages sent to a user email address. The system includes a data store providing updateable storage of signature records that correspond to a subset of undesirable email messages that may be sent to the predetermined email address. An email filter processor is coupled to the store of signature records and operates against the email messages received at the predetermined email address to identify and filter-out email messages corresponding to any of the signature records. An update system is provided to automatically receive a set of signature records, which are then used to update the plurality of signature records stored by the data store. The system can be implemented to include at least a portion of the email processor system within a client site email transport system, which receives the email messages addressed to the set of email addresses assigned or associated with the client site, including the predetermined email address.