Light emitter components and methods having improved performance and related methods are disclosed. The method also comprises receiving from the first user a query regarding other users in a co-branded community visiting the first web site and searching a database to determine a response to the query. The P type channel layer may be divided into sections, or divided regions, that have been doped to exhibit N type conductivity. The start reception section is configured to receive an instruction to start scanning the image on the document from a user. The system may collect and store customer information in order to provide the customer with an enhanced shopping experience, for example by collecting and analyzing purchase information in order to identify customer areas of interest and suggest purchases likely to interest the customer. The method comprises the steps of reacting the dihalogeno compound with a hydroxymethanesulfinate salt in a DMSO solvent so as to prepare the sultine.