Serway Physics Interactive Tools

[kelmcguir]

I used Serway Physics for Scientists and Engineers 6th edition for my undergrad degree. We used PhysicsNow, an integrated interactive tool with the Serway textbook. I found a copy that has an un-used code for PhysicsNow, but it looks like PhysicsNow no longer exists. Anyone here familiar with PhysicsNow? Is it still around but maybe a different name? Do the new Serway books come with some other tool now?