Any Google Plus Methods?

Just been invited into Google Plus, had a look round and feel like i'm going round in circles (pun intended).

Anyone come up with any bright ideas to manipulate this baby?

The search box is where you can start segmenting users. You can search for keywords like "internet marketing" or whatever else. You can even do a regular search using something like, site: plus.google.com posts [keyword] - everything is indexed by Google.

As for automated adding, you could scrape gmail accounts, throw them in a .CSV and upload them to gmail as contacts. They'll be pulled directly into G+.