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well not exactly you are looking for but still for magento all i have got is this one http://www.fmeextensions.com/catalog/product/view/id/76/s/magento-link-exchange-directory-pro/category/6/ http://www.fmeextensions.com/catalog/product/view/id/87/s/advance-sitemap-seo-suite/category/6/

Great!  Would you prefer that I didn't mention your actual website name?  If I can mention it, it would be in the form of a link which would be good...but I can understand if you'd like to remain private. Also, did you notice any drop in traffic yet associated with this issue?

Hi Ganesh, Keep in mind that what you're seeing as PageRank is the toolbar PR that Google updates once every few months and is not necessarily what Google internally uses (which is updated very frequently). I'd look at other metrics. Are you making sales/conversions? Getting leads? Getting targeted visitors?

I second all the responses from Ryan, Marie and Martin. As a simple answer, I'll say if you are spending considerable amount of time, money and resources in the business, it can't hurt to have it renewed/registered for 5/10 years. It can't hurt right other then the extra $100 expense. If it bothers you, just renew it and move on