Have you read about traditional literature circles but weren't sure how to put them together yourself? I understand how you feel!
Much of my reading curriculum is made up of literature circles and my students learn what a literature circle is, in the more traditional "jobs" approach, at the beginning of the school year. They look at each assigned reading through a specific perspective, depending on which assignment they have been given. After a set amount of time, the students read their chapter(s), complete their literature circle "job" and then meet with their 5-6 person literature circle and me. While the group discusses the section they read and the jobs they did, I observe and grade them on their preparation, presentation and participation. This allows them to transition to more "book group" type conversation in the Spring.
In this link, you will find six separate literature circle jobs for students to complete for a literature circle meeting.
I've refined this program extensively since I began teaching and have found this to be really successful. If you think you might want to dive into literature circles but aren't sure how, I'm happy to answer questions about what worked well for me! Feel free to email me: firstname.lastname@example.org