Microsoft have produced a number of End user Training Videos. These are great to get your users started, or to reference if they forget how to use a certain feature.
You can download the complete set for use on your intranet here, or stream the videos from the links below
Find and add a contact in Lync 2010 training video
Send an Instant Message (IM) in Lync 2010 training video
Make a call in Lync 2010 training video
Answer a call in Lync 2010 training video
Forward all calls in Lync 2010 training video
Set up simultainious ring in Lync 2010 training video
Change your status in Lync 2010 training video
Add a note in Lync 2010 training video
Share a PowerPoint presentation in Lync 2010 training video
