From iPodlounge | All Things iPod:

Promotion will last 60 days to redeem your song.
Announceing Pepsi promo during SuperBowl.
Pepsi will be launching a large advertising campaign.
300 million bottles, 1 in 3 is a winner, 100 million winning bottles, winners get a free 99 cent song.
They are giving away 100 million songs with Pepsi.
Apple announces partnership with Pepsi.

In AOL at MUSIC, there will be an iTunes button that launches iTunes and takes you to that song. It will bill you on your AOL bill.
AOL has 25 million subscribers and 16 million AOL Music users - AOL Music will now be a part of iTMS.
AOL Music is going to link to iTunes.
Apple announces partnership with AOL.

Wow. This goes deeper than I thought, way deeper. On top of their two new "Big Brothers" in pop culture/reach/advertising among other things, Apple announced they have over 200 Indie music labels signed and will have 400,000 songs by the end of this month.

In the immortal words of Keanu Reeves, "Whoa."

It's not just that Apple was the first, but it's because when Apple does something, they do it right. iTunes, iTunes Music Store, iPod, iPhoto, iWhatever-else-they-think-of is amazing. It works amazingly well. Together. Nothing else comes close. Period. This level of integration and control can ONLY occur when you control all aspects of the product. From the entry points to the content, player for the content, to the storage of the content. This will never happen with anyone else, not even Microsoft. I'm sorry to say it since Microsoft are the ones paying my bills, I think it'll be until hell thaws from Apple's freezing over that we'll see anything that gets even close to how Apple's stuff works. Good luck Windows Media Team!