If you manage multiple email accounts in Hotmail, Gmail, Lycos, AOL, Freeserve etc., you can easily consolidate them by switching to a single Yahoo! free email account. Transfer of your emails, contacts, calendar to Yahoo! Mail is made easy by a collaboration with Trueswitch.

Yahoo! Mail blog points out to a partnership with TrueSwitch, a service which can easily transfer emails, calendar info, and contacts from multiple free email services to Yahoo! mail.

Try the service. Enter your old email address and password, then enter your Yahoo! mail address and password, select the information you want to transfer (email, address book or calendar), accept offer to notify all contacts of the new email address, agree to the Terms of Service and you are done. And its free. Works for email accounts at yahoo.com, yahoo.co.uk. It also works for Yahoo email in Germany with yahoo.de and France with yahoo.fr