I can think of one specific instance of a Web ad working. I would probably not be spending 6 hours per week listening to “The Tech Guy” if I had not seen an ad for them on UStream, when SB used to stream there.
BTW, Nick, congrats on overcoming the physical and technical problems with streaming via Hangouts on Air. As I recall, the audio cable you had was somehow incompatible with the laptop you were using. You and Steve with Dave as a rectangular overlay is a good choice.