As promised, Yahoo has started to roll out the new e-mail domains: rocketmail and ymail. Those who wish to get a new e-mail address shoud go to the mail.yahoo.com and click on the Sign-Up link. In the next page, in the domain field drop box you can choose yahoo.com, or one of the new domains, rocketmail or ymail.

Yahoo explained that the new domains were added because many desirable e-mail addresses have already been taken for the yahoo.com domain, as well as for localized versions of the namespace in countries around the world.

With the two new e-mail domain choices, Yahoo! will make millions of new e-mail addresses available to the online community.

Yahoo has commissioned a study, which revealed that the majority of online adults (59 percent) consider the most important attribute of an e-mail address to be that it is easy to remember.

Of online adults who indicated that they are not currently using their first choice e-mail address, over half (54 percent) agree that they want their e-mail address to reflect who they are, and about half (48 percent) would be at least somewhat likely to change addresses should their preferred choice become available.

Therefore, Yahoo decided to add the two new email domains. The e-mail accounts are identical to the ones created on yahoo.com

As always, a Yahoo! ID will work for everything across the Yahoo! Network, from checking e-mail to checking out Messenger, Flickr, Groups, Sports, Finance and more.

Also, when signing up for an e-mail account, users have the option of choosing localized country versions from each of the Yahoo! domains: yahoo.com, ymail.com and rocketmail.com

The company said that in many markets would also help users transfer their e-mail and contacts to their new address and notify friends of their new e-mail address.