Does anyone know of a website that was talked about on here recently that lists properties that have been on the market for long times. (60+ days)

I think it was a subscription site.
Just remember its not 100% accurate. My house doesn't turn up on the list despite being for sale for 4 months - because the agent bumped the listing to change the price (upwards) to fit in with the other listings.
first site actually shows the old listings which have been sold
i've found quite a few which sold either at auctions or just sold long time ago