AOL and Yahoo had each reached an end of life statement with PIC, however AOL lives on with a direct federation option!
https://aimenterprise.aol.com/microsoft/
Excerpt from page:
Microsoft Lync Customers:
How to Establish Direct Federation with AIM
AOL is pleased to offer Microsoft Lync customers the opportunity to continue their current federation with AIM and establish new federations if needed. For the first time, we are enabling companies with the ability to establish a direct relationship with AOL to provision and manage their connectivity to the AIM network. This will also allow you to have direct and immediate access to AIM technical support engineers who can quickly identify and resolve any AIM-related issues, thus making the transition to AOL is seamless with no disruption to your company and users.
TomL LCSKid