Have you got a decent technical writer in-house or on tap externally who you don't think is being utilised effectively writing press releases? There's a good tip in the article Hubpages and Squidoo for Industrial SEO on Industrial Search Engine Marketing: why not post some content on the Hubpages or Squidoo sites? These will give you valuable incoming links, and more importantly, will be good PR in the wider sense, helping establish your company as an authority on its subject. Go on – give your PR writer a more interesting challenge today.
Published on 28 January 2009 
A good example of an industrial type Squidoo lens: http://www.squidoo.com/industrial-pollution
Informative and good PR.