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Google uses PageRank (Google's rating of a page's relative importance on the web) along with various on-page factors (keyword density, title, description, h1 tags, anchor text, alt tags, and the like) to rank each web page in the search returns. PageRank is a function of the links that point to your Store-- the number and especially the importance (PageRank) of the pages that have links to your Store.
You can find your PageRank, and the PageRank of any other web page, by downloading the Google Toolbar here:
Link Your eBay Store has a PageRank of 4 using the URL with your storename, and a PageRank 5 (neat!) using your store's nummeric URL-- apparently largely from a post you made on Photo War (nice move, whatever you did!). The PR5 page passed along some of the PageRank to the URL with storename, hence the PR4 there.
The toolbar sits at the top of your browser-- pretty neat tool, and it shows the PageRank of every web page you visit. Also shows links TO that page (currently it only shows those pages pointing to your site with PR4 or higher, which are the most significant). It also has an integrated PopUp stopper, which is pretty slick. Also a tool that highlights the keywords you searched for on a web page that returns from your Google search, and some other neat stuff.
It's a must-have for anyone trying to optimize their web site and increase their rank in Google's search returns. And since Google also provides results for Yahoo search, Google is the most important search engine, by far.
I'm off to figure out how you got that link from Photo War...
