Press release submission websites distribute a press release to news websites, search engines, that means they put it in front of consumers and journalists. They help to create a "noise" and sensation around the brand and manage website SEO-strategy. Submission websites could be paid and free. Paid ones propose bigger choice of publications, could upgrade the content and allow using video and photo materials. Prweb.com and PRLeap.com supposed to be trustworthy in this case. The first one ranges in prices from $89 to $499. PRLeap offers press releases starting from $69.
While free websites do not require financial costs, but they are not less beneficial. E.g. Avangaye proposes a long list of submission websites. An effective way of promoting your press release would be to use both paid and unpaid press release submission websites.
Nixot Media could be an example of successful releasing of new web tool. After an attractive PR, search engine rate started growing and company`s online visibility enhanced.