Actually there's two codes out right now!
One is for SwagBucks! Check the widget, or just go straight to blog.swagbucks.com and read the call of duty blog post. It's good for 5SB's till 7pm EST.
Second code is for iRazoo and is worth 20 points you can get that code from their facebook fan page, it expires tomorrow night at 11:22 PM EST.