Eager to find new sources of income and keep its sellers from striking out on their own, eBay Inc launched a new service Thursday that encourages small and medium sized sellers to build Web stores that operate independent of the ecommerce powerhouse.

This is likely to be a very popular decision amongst regular ebay sellers and will no doubt boost eBays coffers as well.

EBays new ProStores service will allow sellers to design their own fixed price ecommerce site with a unique Web address. The service, which costs $6.95 per month with fees ranging from 0.5 percent to 1.5 percent of transactions, will allow users to link their custom built site to their eBay site and use PayPal, eBays popular online transaction service.

We are all about helping sellers succeed online the report said…