TalkBin, a customer feedback platform for businesses that was incubated at Y Combinator and then acquired by Google in 2011, is being shut down on July 31, citing “dwindling usage.” Enquiries sent to the company are receiving a brief autoreply saying that the service is no longer being maintained or supported, that it will be shut down effective July 31, and with suggestions of alternatives to Talkbin. A full copy of that note is below. One of those listed alternatives, Bellevue, Washington-based Talk to the Manager, has further elaborated on the story in a blog post from its CEO John Washam.