If you've migrated to iCloud the new site for email, calendars, and contacts is iCloud.com
You should still be able to use me.com for WebGallery, iDisk, and the Website services until 30 June 2012. It mentioned what services were migrated and not somewhere in the migration process, but I can't remember where, so my list is probably incomplete.
Edit: Find my iPhone services are also moved to icloud.com