I am not too familiar with any. I had been renting the same apartment with my husband for 5 years now, prior to this, I was living at home with my parents. So looking up homes for sale online is not something I have ever had a need to do. Can someone recommend some good sites to check out that don't cost anything or require a sign-up?
I've used select realty in the past to view nearby homes for sale. I've used Trulia as well when I want to see a wider array of local listings.
Other than that, I mostly check Google.
Zillow is another big site that is free to use and sign up for. I have used both Zillow and Trulia. I believe they are the top ones in the US at least.