What Happens When the Marginal Cost of Storage Approaches Zero

Yahoo! announced that they will boost e-mail storage for SBC Yahoo! customers for no additional charge. Beginning in early May, SBC Yahoo! customers will have 2 gigabytes (GB) of storage for each of their 10 available email sub-accounts, as well as their main email account, bringing the total potential storage capacity for a family or small business to 22 gigabytes.