Google is always known for a good April Fool's joke, but here's something interesting. One of these videos is real. It's a real concept they are working on. Can you guess which one?

1.Gmail Tap

2. Multitask Better With Google Chrome

3. Project Glass

4. Google And NASCAR

So, now it's time for Sesame Street. "One of these things is not like the other..." Can you guess which one?

 

 

Google Are You Serious? Project Glass is real. http://g.co/projectglass Anyone else a little freaked out?