I got an e-mail notice from Yahoo today that my free 6mb mailbox has been increased to 100mb! Yahoo must be trying to head off some of the desertions to Google when their 1 gig mainbox starts up. Another service notified me the other day that they were increasing their mailboxes from 10mb to 25mb. Now I won't need 6 different mailboxes for Yahoo Groups mail.
G-mail is already in the beta-testing phase. People with g-mail accounts can sed invitations to others. I just got an invite the other day. 1000 MB of storage!!