Lync is the new brand name for the products formerly known as “Office Communications Server.” Lync is Microsoft’s PBX alternative. It combines into a single product corporate instant-messaging, conferencing and presence capabilities. There will be Standard and Enterprise versions of the product, as well as a Microsoft-hosted Lync Online service — which will be part of its Office 365 bundle due out in 2011. (Office 365 is the new brand name for Microsoft’s Business Productivity Online Suite, for those trying to follow the bouncing balls….)