Faith Goumas on the Public Relations Society of America web site has a roundup of writing tips for success in the PR business. They include five "little" ways to tighten your writing, and a full-out attack on the jargon beast: "'Landmark,' 'revolutionary,' 'groundbreaking,' and 'breakthrough' top the list of words to eliminate from your content. Phrases such as 'cutting edge,' 'best of breed' and 'world-renowned' also serve as 'timeless examples' on the list of jargon."
