Press releases are similar to articles but the idea is to present it in the light of something newsworthy. Once again it is a great way to get featured in offline and online publications, such as Google News, local papers or even into the national papers.
For example, say you did experiment on weight loss product X in your town and 10 people lost a total of 200 lbs in just 2 weeks! There’s a fantastic reason for press release! Use it to your advantage to feature your website where you have more details on experiment and product reviews … plus a sales pitch!
Bare in mind, that press releases can also attract journalists from magazines or even radio and TV stations!
A good place to start is prweb.com and similar services. Read their guidelines and tips; read previous press releases in your niche and see what you can adapt from them.