Update: Spaces has been discontinued as of April, 17th 2017. 

Spaces, the newest app which lets users create a space with just one tap for any topic. Sharing is key as anyone can be invite via messaging, email, social network or whatever, (that's what google said). The biggest features that stand would having built in Google search, YouTube all without having to leave the app. 

ColdfusTion put together a short film featuring Google and just how big its gotten over the years. Definitely worth a watch.

This infographic demonstrates the tips & tricks for any Google user to get the most out of their searches. (use the read more to view)  

The newest feature to show up in Google+, Stories. Aims to create a dynamic scrapbook like slideshow of your photos and videos. Their live example (as shown below) is actually done very well. And stories even come with their own url + full screen capabilities.

Stories is available on:

• Web
• Android
• iOS (very soon)