Kawasaki is more of an evangelist-for-hire than anything.
https://plus.google.com/+GuyKawasaki/posts
Philip DeFranco is one of the early youtube success stories. His channel is a low-content current-events recap, or at least it used to be.
https://plus.google.com/+PhilipDeFranco/posts
Another alleged participant is this internet video personality:
https://plus.google.com/+KimberleyBlaine/posts
http://www.thegotomom.tv/
What's confusing is that they have someone from PBS moderating this "chat". Does that mean one of the participants is going to be pro-gun, or is this going to be a "moderated" pro-gun-control love-fest?