Lorenzo Snow Chapter 15: Faithful, Energetic Service in the Kingdom of God- One video on the sidebar.
"O Be Wise" by Elder M. Russell Ballard (Quorum of the 12 Apostles)- I appreciate his 6 ways to serve wisely and well. Focus on the simple ways we can serve- with the heart.
"Called to Serve" by President Boyd K. Packer (President of the Quorum of the 12)- Serve where we are called but its more than that. "I see two kinds of service: one, the service we render when we are called to serve in the Church; the other, the service we willingly give to those around us because we are taught to care."
"Lift Where Stand" by President Dieter F. Uchtdorf (2nd Counselor in the 1st Presidency)- Serve where you are appointed. Don't seek to lead or to hide. Serve with your heart.
"Rise to Your Call" by President Henry B. Eyring (1st Counselor in the 1st Presidency)- You are called of God, He will guide you, He will magnify you.