Depends what you consider nu metal bands.  Please make a list.   

 I thought there already was one?

On the List of Nu metal musical groups, only Korn and Kittie overlap (and I didn't even add Kittie to the Alternative metal list; someone else did).  All others that overlap are filed under Instigators/Progenators (which means they aren't nu metal artists).   

 Pretty much all of them on the list are correct. However, the 'insigators' were simply some of the first Nu Metal bands. Ive listed them below:

 Deftones
 Fear Factory
 Godsmack
 Korn
 Rage Against the Machine
 System of a Down

 They are all Nu Metal bands. If there is a Alternative Metal genre, it needs defining as exactly what it is. Gothic metal's and symphonic metal's 'Sound, Constructs and Lyrics' sections make for good templates for writing down what a genre consists of. 

 I dont want to delete this article if it can be kept, as a lot of editers have put good work into this. But if its essentially Nu Metal, it needs to be merged. If needs be, it can be mentioned on the Nu Metal article in the same way Gothic-Doom is mentioned in the gothic metal article.