Many upper-year CS courses make use of USENET-style course newsgroups where students may post questions or comments and read answers or follow-ups. Many of these groups are exported to off-campus machines and are available on Google Groups. While there are many advantages to this mechanism, there are some disadvantages. Anyone can post under any name, and Google will archive all posts forever.
CS 146 will not use USENET-style newsgroups. Instead, it will use Piazza. Students enrolled in CS 146 should receive an invitation email; if not, please contact the instructor.