i created several sites ... but some of them, their contents gone to supplemental result .... any idea/advices to avoid supplemental result ??? thanks
No. use RSS feeds on those pages. Syndicate content related to thos pages on your pages and that will bring fresh content to your site. This will help you get out of Supplementals.
The main crimes against Google that get you into the supplemental results seem to be: Static content All your pages too similar too few links Adding an rss feed helps a lot because not only does it put more unique content on the page, it also updates it frequently. Getting deep links into your site from high PR pages will also help.
Hmm thanks for that advice, i have about 100,000 pages in the supplemental results section, ill add a small RSS feed at the bottom of each of those pages see how that goes.