How do I load music to the new Shuffle

Download and install iTunes, if you have not already.

http://www.apple.com/itunes/

In iTunes, if the sidebar (along left side of iTunes window) is hidden, from the menu bar, under View, select Show Sidebar. In the sidebar, the shuffle appears under DEVICES, when it is connected.

Select the shuffle in iTunes. There is a row of buttons, starting with Summary. Click on Music next to Summary. This is the shuffle's Music screen, where you tell iTunes how to sync songs to the shuffle.

Check the box for Sync Music. If your iTunes music library is small and fits on the shuffle, you can choose to sync Entire music library. Otherwise, you can choose to sync Selected playlists, artists, albums, and genres. On the lists below, checkmark the playlists, artists, albums, and/or genres that you want on the shuffle. When you click Apply, the songs from your selection sync to the shuffle.

One convenient way to set this up is to create a new playlist in your iTunes library. Name it "iPod Songs" (or whatever you want). Put songs that you want on the shuffle on this playlist. On the shuffle's Music screen in iTunes, select this playlist under Playlists. When you click Apply, songs on the "iPod Songs" playlist sync to the shuffle. Going forward, to update songs on the shuffle, just update that playlist in your iTunes library (add/remove songs). The next time you connect the shuffle (or click the Sync button), iTunes automatically syncs the same changes to the shuffle.