Hi everyone. I have a question concerning meta keyword tag. The thing is that there are two parameters at SEO tools: Space Utilization and Word Utilization. As the keyword is long, it utilizes a lot of space, but when it comes to counting the optimal number of words, it can be about 100 percents while Space utilization parameter is low. The question is: is it possible to save space without putting a "space-button"? Will it work with search engines? Will that change search results?
Save space by implementing with efficient code. Use whatever keywords make sense for the page; the space savings related to a few keywords is a non-issue with respect to SEO. Keywords that are on page, and in links, and on pages that link to your pages, are the only way SE's can tell what your pages are about.
leadec - If I understand your question correctly, you're thinking that long meta keyword tag might help you rank by including a lot of words, but that will take up a lot of space. If this is what you're asking about, I think you've got a fundamentally incorrect idea of the nature of onpage optimization.
The essence of optimizing a page is about focussing it. Your keyword tag (assuming that it would be helpful in ranking, which it's not), should be at most 10 or 15 words. Think different keywords for different pages.