Question: I'm using the Adobe CS5 suite and trying to upload all of my pictures to Facebook... and .NEF files are too large to upload, any suggestions?

Answer: 
I use Picasa for that. 
I would simply import the NEFs from the camera or the camera's memory card.
That puts the NEFs in a folder on your computer's disk.
Picasa sees the NEFs.
You can edit them just like any other photo.
Adjust contrast, crop, color, whatever...

At that point, you can click on your folder of photos to select the whole folder.
The "Photo Tray" in the lower left should say "Folder Selected..."
Then, click Picasa's "Export" button.
The Export will create a new folder full of all-edits-applied JPEGs.

Picasa can be downloaded [here](http://picasa.google.com/)
Create a [batch process](http://www.youtube.com/watch?v=PTtWEtN06EI) to convert from .NEF to .JPEG with Photoshop. Don't forget to include closing the picture in your recording as Photoshop does have a finite limit on number of open files. This solution is ideal if you took your photos in the same lighting condition so corrections, if any, are the same. 

For corrections: at the very least, you need to reduce your file size (i.e. change dpi, dimensions) to meet Facebook's restrictions.