do now: Feb 4,2009

it can help by maybe you have to contact someone but you cannot reach them so you send them an e-mail. it helps by letting you talk to some one without having to call them. businesses use probably use them by sending people memos. it probably is faster that way then having to get everybody together and make an announcement. they probably use it by sending certain people memos about the work they have to do and when they have to turn it all in.  it probably makes things a lot faster and easier.