The French Revolution collection of the Newberry library has been digitized and is now available through the Internet Archive. Below is more information from the collection's website:
The Newberry Library's French Revolution Collection consists of more than 30,000 pamphlets and more than 23,000 issues of 180 periodicals published between 1780 and 1810. The collection was acquired by the Newberry between 1957 and 1961 from Michel Bernstein, a book dealer in Paris. There are complete runs of well-known journals, as well as many rare and unknown publications. The collection represents the opinions of all the factions that opposed and defended the monarchy during the turbulent period between 1789-1799 and also contains innumerable ephemeral publications of the early Republic. While the majority of the pamphlets were printed in Paris by the Imprimerie nationale, there are also significant numbers of provincial publishers and fictitious imprints.
Thanks to our sister list H-Hist-Bibl for this tip.