If you have more than one Windows Live account now you can link them together.

Windows Live Linked IDs Shipped
Got multiple Windows Live accounts? Sick and tired of having to log out and back in again to switch between them? Well, no more! You can now link your Windows Live IDs together so you can switch identities in one click from the menu on the top right of most Windows Live pages.

To set this up, go to https://account.live.com and look for the section called Linked Windows Live IDs. There’s a link there to manage your linked IDs and if you click that, you’ll get a screen where you can add IDs.

Just make sure you read the two security notes at the end of that page.

• Microsoft makes public @live.com email registration
• Windows Live Wave 3 Full Installers
• Windows Live Wave 3 RC
• Windows Live Messenger 9 Wave 3 Milestone 1 Leaked
• Windows Live Messenger URL Blocking