Everyone who registers with  SSiW gets all the free lessons including the full Introductory Course, the Vocab lessons, and weekly practice sessions.

"Members" of SSiW additionally have access to all these resources through the members area:

The Daily Practice Sessions for the first six lessons

The Daily Practice Sessions for the full Introductory Course

At the end of the Introductory Course you can extend your vocabulary with the Vocab Lessons North or South

The SSiW Intermediate Course - which picks up where the Introductory Course left off and takes you a lot further:

SSiW Intermediate Course - Northern

SSiW Intermediate Course - Southern

The Daily Practice Sessions for the Intermediate Course

and 

The Lounge with its legendary virtual bar

To access these  resources you will need to take up membership,  which only involves a small monthly subscription. 

You do NOT need to be a member if you want to go to Bootcamp, but you DO need to have finished the introductory course and the free vocab lessons.