Check the Awesomium license page:
Specifically the free license section:
Free for Indie Companies
If your company made less than $100K last year, you qualify!
Free for non-commercial use
Free for evaluation and development
It goes into more detail on this page:
e recognize the importance of Awesomium and want to get into the hands of as many developers as possible. That?s why we?ve made Awesomium completely free for indie developers. If your company made less than $100K in revenue last year, you qualify to use Awesomium for commercial use free-of-charge.
So most people should be fine! Any questions about the licensing specifically obviously should be directed at Awesomium themselves.