I agree Travelocity's is better than Expedia's but I've given up expecting anything useful from either. Travelocity's seems to be always a day too late for me. All depends on what you're looking for. If it is being notified 24-48 hours after a new lower fare is posted, I guess it works for that. I think it fits into EPS's post on how the internet information tools are crippled to give an edge to those who pay for timely service.