Finding people on Google+ is quite easy. With the recent mass invite URL feature, getting even strangers in your network has become easy. 🙂
If we want to get all the people we follow on Twitter and Google+ to be common, a great way to do that is use Twitter2Plus.
Just type in the twitter handle in the search bar, and get all your Twitter contacts who also have a profile on Google+. Now simply start adding them to a Google+ Circle.
What the website does, is match one twitter account to another with the corresponding Google+ profile in which the twitter URL might be included.
Considering Twitter and Google+ have the same structure of not needing to mutually follow each other, this tool could be very useful to follow your Twitter friends on Google+.
Try out Twitter2Plus and drop in your comments.
Related: Find people on Google+ Directory