Ok, I'm reaching out to all of you Moz'rs for some help with this one. My client's site has dropped off the face of google in a real short period of time.  It went from page 1 (avg rank 3 to page 6 (avg rank 50) and below in the matter of 2 weeks. Here's some facts: 1.  DA is a 22 and homepage PA is a 31.  It outranks all other sites in its competitive set. 2.  The homepage used to be the page that displays for keyword searches, now its the FAQ page, which has a lower PA of 23. Why has the home page seemingly vaporized?  And, why is the FAQ showing as the first result? What should I start checking.  I feel paralyzed, not sure where to start. More info: a.  There are no alerts present in Webmaster Tools. b.  For some reason the homepage (domain.com) was 301'd to domain.com/home.html.  Domain.com is indexed by Google, however, domain.com/home.html is not.  If this is the issue, what is the best way to handle it? Thanks in advance for your help!

We moved from a .php site to a java site on April 10th.  It's almost 2 months later and Google continues to crawl old pages that no longer exist (225,430 Not Found Errors to be exact). These pages no longer exist on the site and there are no internal or external links pointing to these pages. Google has crawled the site since the go live, but continues to try and crawl these pages. What are my next steps?

I'm reworking most of the page titles on our site and I'm considering the use of the word 'Shop' before a product category. ex.  Shop 'keyword' | Brand Name As opposed to just using the keyword sans 'Shop.'  Some of the keywords are very generic, especially for a top level category page. Question: Is the word 'Shop' damaging my SEO efforts in any way?