I've never run ads on my site because Google selects ads according to website content. I knew if I ran their ads, I'd likely see my site linked to abortion mills and Planned Parenthood. So, no ads.
But a few weeks ago I ran into a Catholic ad site that only posts Catholic material. I decided to try it to help pay for the Les Femmes website and the print newsletter. Most of those on the mailing list (priests and others in my diocese) receive the newsletter gratis. A handful of generous donors support the free issues, but since I rarely remove anyone from the non-diocesan mailing list (unless someone requests removal or I haven't heard from them in years) many others receive their issues free as well. Every now and then I get a letter from a reader thanking me for keeping them on the list even though they haven't donated before. Since the Blessed Mother provides enough to pay for the printing and mailing costs I continue that practice.