It is sometimes hard to discern which brands some top YouTubers are working with and how they are working with them. After all, there’s more than a few ways to mobilize influencers on YouTube.

With [a]list summit coming up July 31, we did some sleuthing work to find out as much as we could about what brands certain YouTubers are aligning themselves with, what they’re in for (hint: free games, the ability to impact social change and, um, money).