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Hello, I run an e-commerce website. I just realized that Google has "pagination" pages in the index which should not be there. In fact, I have no idea how they got there. For example, www.mydomain.com/category-name.asp?page=3434532
There are hundreds of these pages in the index. There are no links to these pages on the website, so I am assuming someone is trying to ruin my rankings by linking to the pages that do not exist. The page content displays category information with no products. I realize that its a flaw in design, and I am working on fixing it (301 none existent pages). Meanwhile, I am not sure if I should request removal of these pages. If so, what is the best way to request bulk removal. Also, should I 301, 404 or 410 these pages? Any help would be appreciated. Thanks, Alex

Hello everyone, My e-commerce website traffic dropped by 75% overnight,  on April 12th. The website has been around since 2003 and growing every year. Over the years gained some great placement for some competitive keywords and stayed on page 1 for some time. After the Panda update, some of our major keywords dropped from page 1 to page 10. The first Panda update had a slightly negative effect on us, by bumping up all the brand's websites (brands we carry) placing the brands in the first couple positions (giving them 2-3 first spots) pushing us down. However, the Panda 2 killed us. I was wondering if anyone could shed some light on my situation. Did anyone ever have luck or would recommend contacting Google, and asking them for advise or reasons why the site was dropped. The website in question is www.instyleswimwear.com Thanks in advance,
Alex