Thinking about switching e-mail providers but don't want to lose all the messages from your old in box? For $10 an account a service called Yippie Move will do all the heavy lifting for you. It works with about 40 various Web and educational e-mail providers, or with any account that supports IMAP. Just plug in the credentials from your old mail service with your new account and it will do the migration for you.
While advanced users could do all of this themselves simply by mass forwarding, Yippie Move is aimed at e-mail newbies and those who don't want to go through all the effort of porting over something large like a four-year-old Gmail account. It will also transfer over any existing folder scheme, including Gmail's slightly anti-establishment label system.
Creator Viktor Petersson tells me most port jobs transfer over in about 10 minutes or less, but it can take a bit longer if you've got an exceptionally large account. Since all the transferring is done on the company's servers, you can simply plug in the information and go off to do something else without it sucking up your bandwidth and processor cycles.
The one downside is that there's currently no support for Windows Live Hotmail or Yahoo Mail, two services a lot of folks are bound to have or want to migrate to from an existing account. Petersson says IMAP continues to be the main focus so far, with support for POP and Web-only services coming later down the road.