Out from Google today is this nifty Google Ad Formats and Options document that lays out their advertising options in a series of visual grids. It includes some references to capabilities I haven’t seen referenced widely, like In-video Ads – advertisers can append ads to the bottom 20% of a YouTube video window. There’s also a teasing reference to the still-in-beta Contextual Category Targeting that will let advertisers restrict their Contextual ads to sites that fall within specific defined categories.
A few nuggets I hadn’t seen before: a reference to the ability to target Feedburner with contextual ads (embedded in RSS feeds?), and a mysterious line that seems to indicate that YouTube is targetable via some kind of combination of Search and Categories. Will AdWords advertisers be able to target ads based on searches performed within YouTube? Cool!