Agreed, I've said it all along in past posts and it's just implicit for me now that many will "come out of the woodwork" once the beta is close to complete. At least I hope so.
Youtube has a huge, huge gaming footprint. I think I watch at least a dozen various gaming channels, and that doesn't even count the Tech channels about gaming hardware. Every game has a pile of experts/fans/etc with channels - DCS I think I have 3 or 4 alone, and those are just the best ones that I picked to subscribe to. I'm sure Il2, WT, WoT, and others have even more fan channels. Start getting your claws into those viewers, as most of the vids I watch catch 50k views plus in just a day or two, with around 500k average subscribers, some with millions that regularly get 150k views on average vids, and higher on well received videos. Junky is correct about YT IMO, in addition to other areas, it's a great place, perhaps THE place to target.
I'm not sure how the purchasing end of adsense or whatever add company you deal with as an add purchaser works with YT - if you can select where/what channel/video you want your paid add to run - heh, I can think of a few right now that would be perfect target audiences as they are already play flight sims and have HOTAS hardware, or at the very, very least a good stick.