This is a topic rather than a Question! It would be nice to see SEO writers replying to this thread.
The recent trends shows that more the white space on the Web page - better is the chances of Search Engine ranking. Because of obvious reasons - which can be discussed later. I am working on 40-50 Affiliate and Corporate Websites presently. Lately I have applied the "more white space" theory on the pages. Its seems to be working though I am still waiting for the best results.
I want to ask fellow writers (better if they are Web Content Writers) - whether the strategy works for them also? Is it the right idea or do we thrust too much content to the visitor. make him read a lot and go away. So where goes the sale? White and blank space may mean easy navigation.
Good use of white space can definitely make things easier for the reader, but I don't see how it can influence SE rankings directly. Indirectly, of course, the more people who like your site and link to it, the better you'll do in rakings. Maybe you're seeing an indirect effect, as a result of making your pages more reader-friendly?
Peter - white space means lesser tags. Which means that you can concentarte on keywords and optimize them. Rather than doing too muccha image work or using CSS - its simple to just concentarte on Key things.
I am a firm believer in presenting information at various levels. For example, I find that some visitors are happy with a skimpy to the point page that gives the basic details of a product. Some like to delve deeper and get lots of technical information on the product. For this reason, I usually offer several levels or kinds of pages to visitors at some of my sites. It's better for the search engines too because I wind up getting rankings for keywords I never would have thought of for some of the meatier pages.