Press Release is anything new happening in organization and writing about that is a press release in term of SEO. Before Google update press release have good value and passed link juice to your site. But now, press release does not pass any link value. So do not put links in press release.
SEO press releases are newsworthy press releases just like a standard press release. The difference when you submit SEO press releases is that the text of the content is optimized in several ways to help you achieve greater visibility in the search engines. If your company is submitting press releases anyway, it makes sense to submit SEO press releases to enhance your online presence!
I will share Free Press Release sites list. This Press Release sites is very helpful for all SEO worker and website owner.