Search for topics that interest you... add those people to a circle.. voila - you have a bunch of people you can share things and discuss with. I have a circle of VC's & angels, a circle for Python enthusiasts, a circle of C#/.NET enthusiasts, etc. My stream is always full of new and interesting discussions.

I don't think G+ will be a "social network" like Facebook. And that's a good thing. There's a reason im not on Facebook but I still use Twitter and G+. A lot of the people I talk to feel the same way.

What's more interesting to you... A) Reading about your friend's drama issues or B) Reading about the latest, coolest startups and technologies?

A) Facebook B) G+

"What's hot on Google" stream, seems to have been introduced to mitigate the chicken and egg issue...