People get squeamish when asking for money, or when promoting something of value to their community. If you feel it’s a genuine value to the community, why feel squeamish? You’re providing many services for free. To ask for compensation for certain parts of the value you give away is natural and expected.
Make the Ask – Chris Brogan explains his own experience in changing “free lunch” into “consultin for an hour”. What you might be doing for free, if others are turning around and making profit – can you envision a way to be compensated for the value you’re already bringing to the equation?