2 adjectives to describe disseminators

He did all that he could to embroil the country in war with Great Britain; and there was a marked division of sentiment among the people,the new Democratic-Republican societies, in imitation of the French Jacobin clubs, being potent disseminators of democratic doctrine and sympathy with the French uprising against despotism.

I know far more about this town than you do, I bet!" Everybody laughed at Mrs. Orgreave, the great letter-writer and universal disseminator of information.

2 adjectives to describe  disseminators