Whole site blocked by robots in webmaster tools

[rrogers]

My URL is: www.wheretobuybeauty.com.auThis new site has been re-crawled over last 2 weeks, and in webmaster tools index status the following is displayed:Indexed 50,000 pagesblocked by robots 69,000Search query 'site:wheretobuybeauty.com.au' returns 55,000 pagesHowever, all pages in the site do appear to be blocked and over the 2 weeks, the google search query site traffic declined from significant to zero (proving this is in fact the case ).This is a Linux php site and has the following: 55,000 URLs in sitemap.xml submitted successfully to webmaster toolsrobots.txt file existed but did not have any entries to allow or disallow URLs - today I have removed robots.txt file completely URL re-direction within Linux .htaccess file - there are many rows within this complex set of re-directions.  Developer has double checked this file and found that it is valid.I have read everything that google and other sources have on this topic and this does not help.  Also checked webmaster crawl errors, crawl stats, malware and there is no problem there related to this issue.Is this a duplicate content issue - this is a price comparison site where approx half the products have duplicate product descriptions - duplicated because they are obtained from the suppliers through an XML data file.  The suppliers have the descriptions from the files in their own sites.Help!!

[AdamThompson]

After reviewing your site, I can see that:

• Your site is well indexed by Google.
• Your site has very thin content.
• Your site is mostly duplicate content.

I think you'll need a content strategy to achieve and maintain significant rankings. You'll probably need to noindex your entire site except for a few pages that you add significant and valuable content to. (Unless you have the resources to write good content for your entire site.)