I am just an user when we talk about Lync, but Microsoft released the videos of their Deploying Lync Jump Start course. I must say that Jump Start courses are very helpful as during the sessions experts answer questions from the audience and are free. If you want to be an expert in Lync this is from where you have to start:

• Deploying Lync Jump Start (01): Features and Architecture of Microsoft Lync Server 2010
• Deploying Lync Jump Start (02a): Deploying Microsoft Lync Server 2010 | Part 1
• Deploying Lync Jump Start (02b): Deploying Microsoft Lync Server 2010 | Part 2
• Deploying Lync Jump Start (03): Configuring Users and Rights for Microsoft Lync Server 2010
• Deploying Lync Jump Start (04a): External User Access Microsoft Lync Server 2010 | Part 1
• Deploying Lync Jump Start (04b): External User Access Microsoft Lync Server 2010 | Part 2
• Deploying Lync Jump Start (05a): Configuring Basic Enterprise Voice Functionality Microsoft Lync Server 2010 | Part 1
• Deploying Lync Jump Start (05b): Configuring Basic Enterprise Voice Functionality Microsoft Lync Server 2010 | Part 2
• Deploying Lync Jump Start (6a): Extending Enterprise Voice Functionality Microsoft Lync Server 2010 | Part 1
• Deploying Lync Jump Start (6b): Microsoft Exchange Server 2010 SP1/Unified Messaging Integration | Part 2
• Deploying Lync Jump Start (7a): Implementing Response Groups in Microsoft Lync Server 2010
• Deploying Lync Jump Start (7b): Real-world IVR Scenarios with Microsoft Lync Server 2010
• Deploying Lync Jump Start (8): Conferencing with Microsoft Lync Server 2010
• Deploying Lync Jump Start (9): Monitoring Microsoft Lync Server 2010
• Deploying Lync Jump Start (10): Compliance and Archiving with Microsoft Lync Server 2010
• Deploying Lync Jump Start (11): High Availability and Disaster Recovery in Microsoft Lync Server 2010
• Deploying Lync Jump Start (12): Call Admission Control with Microsoft Lync Server 2010
• Deploying Lync Jump Start (13): Deploying & Configuring Enhanced 9-1-1 with Microsoft Lync Server 2010