Austin-based Bazaarvoice has snagged another electronics manufacturer as a client, the firm said Monday, saying that it has added Panasonic as a client. According to Bazaarvoice, Panasonic will use its Ratings & Reviews product to help consumers access opinons on its web site and other retail sites. Financial terms of the win were not disclosed. Bazaarvoice develops software-as-a-service that helps ecommerce retailers and others add ratings and reviews to their sites.