Shelly Terrell, who recently guest posted on this blog, produced a video this week about the purposes and benefits of developing a personal learning network (PLN). About thirty members of Shelly's PLN appear in the video. If you're looking for a way to show your colleagues why you've developed an online PLN, this video does a nice job of illustrating why we form PLNs. After watching the video you might also want to see Shelly's wiki and slide presentation about connecting with social media.
If you're just beginning to take steps toward creating an online PLN, you may want to work your way through this presentation that I created last summer with the help of my PLN.