- If your website is blog then it will be shown in Google News periodically upon your new content added - If you have distributed press release then you will have a space in Google news for a period of time.
I am agree with the Sxperm, When you submit your press release in news sites, then it automatically get space in the Google news for a period of time and where as your blog content get space in the Google news periodically when updated with new content as news.