Yahoo sent emails to some randomly selected users offering 100MB of free storage space - the day before Google announced its 1GB plans

A day before Google announced its free email service with 1,000 megabytes of storage, rival Yahoo began singling out email subscribers to get more room at no cost, too.

Yahoo confirmed on Friday that it has sent email promotions randomly to some subscribers of its popular Web-based email service. One promotion sent on Tuesday upgraded users to 100MB of disk space as of March 31 for free, and gave allowances for sending and receiving larger attachment files using Yahoo.