Three. PR9.net: This was an exceedingly low-volume web page. I do not know if their online press releases are value anything, but presented how number of individuals appear to utilize it, my guess is "possibly not." It went offline sometime in October of 2022. Online PR News is all right. https://press-release-launching-n79023.bloggactivo.com/33845615/an-unbiased-view-of-best-press-release-submission-service