Business Wire Press Releases is a great niche website that has newswire services and more. Business Wire Press Releases gives you the ability to publish press releases online through their online service. They will publish your press release either in their own forum or on other popular press release websites like All Business  and Google News. You can also choose to send it directly to media outlets, which means you don't need any help from them and they will deal with the paper work of sending over your press release