Seattle-based real estate Zillow has added a new, user-driven Q&A feature, the firm said today, which will allow anyone to ask questions and share information about homes. According to Zillow, its new Home Q&A feature will allow anyone to ask any question about any home, and receive answers from the community. The new feature comes as social Q&A answer sites such as Yahoo Answers have become very popular. Zillow's Q&A feature allows anyone to ask or answer questions, rate answers, and look at a user's profile.