Is there a way to determine what applications on my MacBook Pro are consuming the most wifi bandwidth?

[tnapper]

I am running OS 10.7.5 and am interested in discovering what app or service on my laptop is using up all my wifi. It seems crazy that I am burning through 1GB of data a week on my hotspot with about 8 hours of use. I am just looking at 50 to 60 web pages a week and answering email. I would hope to be able to turn down or off the offending service/app.
Found RubberNet as a possible solution. Seems to work pretty well. http://rubbernetapp.com/ A little funky and not as clean on the setup as I'd like. Any others?

[Bob]

Here is all the mac and apple help in one place... Hello, Ask Apple here for free 1-800-MY-Apple ,and check out the sites for more informaton http://www.apple.com/support/ and
https://discussions.apple.com/thread/246...0&tstart=0
http://www.facebook.com/pages/TheAppleGossip/...
http://www.apple.com/macosx/recovery/
http://9to5mac.com/
http://appleid.apple.com
http://www.apple.com/support/mac/facetime/
http://www.ifixit.com/iPad-Parts and Mac parts
http://www.apple.com/iphone/built-in-app...phone.html
Hey, I enjoyed your question, I have worked as a technician most of my life, I
hope I have helped you...
Good luck...

CompTIA A+ Certified Computer Professional