Here is a short list of new Godaddy.com coupon codes but a Big Helpful Tip/Trick below as well. 
gdp0804c $6.99 .com domains. Expires Aug 31, 2008 Register, Renew or Transfer
goxt1001c $6.85 .com domains.
gdp0812a 15% off your order of $50 or more
gdp0812b 20% off your order of $75 or more
gdp0812c 25% off your order of $125 or more
Downforce should still work for several as well.
gdbb776 has worked for a long time and should take off about $2.
Godaddy Trick
Tip~ I have also noticed you can use a Link instead of entering in the code. The links look like this and you would just add the code to the end
http://www.godaddy.com/gdshop/default.asp?isc=CodeHere
http://www.godaddy.com/gdshop/default.asp?isc=gdp0804c will give you $6.99 .com domains when you get to checkout.
Trick~ This is the system Godaddy uses when displaying ads on Google and offering certain prices. Type into Google.com Domain Name or a Godaddy related keyword. This will nearly always put a Godaddy ad at the top. See what it says for a price. If you do not like it, refresh the page and many times the ad will change and the price. So what I do is Right Click on the link you would click on in Google & Copy Shortcut. Then paste into wordpad or whatever you use. Below is the code you will see.
http://www.google.com/aclk?sa=l&ai=BlO5RhQaiSNTsEqbEiAHjhaXVC8TAoCzCsIP-B5mazQWwneUDCAAQARgBKAM4AFDAt6DUB2DJxtWN_KTMFKAB0sy5_wPIAQHIAtz66AHZA0Kvr3brKHWR&ggladgrp=
15483796668031893400&gglcreat=6008521602612556977&sig=AGiWqtzjAbXWSdpq-kGDFj7Kp8qBjPMKUw&q=http://www.godaddy.com/gdshop/compare/gdcompare_domain.asp%3Fisc%3Dgoxt1001c
You will see what I highlighted in Bold, is the Code for the discount. This is also how I come up with my many lists of Godaddy Coupon codes 
Ross
LOL Jamie i never realized that at all but now that im looking at it you could potentially find thousands of different godaddy codes. I got this one goxt1001z if look at it it is only a letter different than the one you have up there, goxt1001c.
You can also just right click and open in new window and it displays a link like this: http://www.godaddy.com/gdshop/compare/gdcompare_domain.asp?isc=goxt1001z
As you can see the code is right at the end after the “=”.
Lol makes me laugh.
**Jamie Says**
. It’s amazing how “easy” things are sometimes if you dig around.
I figured some people would get a kick out of the trick
Tony Lam, DMD
Hey Jamie,
What do you think of JVR.com going for $8,500?
**Jamie Says**
I think $8,500 is a good price for JVR.com .
ranyliq
This trick only showin 2 different code
btw, Why .com is cheaper then .net now?
**Jamie Says**
Try several different keywords but be sure to always include the keyword “godaddy”. Godaddy Domain or Godaddy Hosting or Godaddy SSL etc.