If you are simply making an announcement, a press release opportunity through payperpost.com is an easy way to spread the word and gain links. To use this type of opportunity, you can copy and paste your press release into the payperpost system and provide a few additional parameters. Content providers identify what they believe is newsworthy and help you spread the word about your announcement via their blog or website.
ReviewME.com is another pay-per-post network that allows you to get your web site reviewed by content providers and includes benefits such as site traffic, feedback, word-of-mouth buzz, and links with a target.