I just got the e-mail and the notification is set up for "Boston to..."
http://www.airfarewatchdog.com/
They send an e-mail every week or so listing the latest domestiic and international low fares. Good site. Wish they found something for me when I bought my tickets in March. I guess it is a toss up-buy early or wait until last minute. Sometimes I think it pays to wait. That tactic may backfire but it seems that every time we have gone to Europe, the fares have dropped after we paid for our tickets. Good luck, I hope to see you in Paris!