Pluth's book spends some time discussing webinar preparation ("Where Do I Start?"), the "Deadly Sins" of Webinars, and creation of effective Power Point decks and participant handouts.
The bulk of the book, though, focuses on "interactivities" (interaction + activities) that can easily be incorporated into most any webinar to enhance learner participation and, ultimately, learning transfer.
I've perused multiple books covering webinar activities, and most have assumed that the webinar platform used offers similar tools (polling, whiteboard, application sharing, video, web browsing, etc.). Unfortunately, the company I work for -- because of both software limitations (firewalls) and hardware issues -- uses a platform that does not offer a whiteboard functionality, video capability, and web browsing. Kudos to Pluth for offering "Variations" to most activities that allow them to be modified to fit most any situation.
While the majority of the Interactivities presented are good ones, a few assume you have the money to purchase outside licenses for software programs -- kind of a turn off for me (did Pluth get paid to be a spokesperson?). One of the activities assumes you will be able to afford the Bravo! system with PING software. Another assumes you can purchase and use Raptivity! software. A third is focused on ResponseWare. While I appreciate the general ideas behind the activities, I do not like the fact I'm being presented activities that require spending additional money or purchasing additional hardware.
Aside from the third-party software activities, the book is solid, well-written, and does offer a myriad of activities most any facilitator using most any platform (sometimes with modifications) can easily implement. And create Webinars with WOW Factor.