Mainfunction.com was the site to go to when you needed resources or help if you taught computer science. Alfred Thompson and Pat Phillips did a great job making the site new and answering any questions you might have.
Any teacher could post a question in the forum and that teacher would get some type of answer within 24 hours.
The site has gone away and a new site called Pre-Collegiate Connection has taken its place.
The site has everything the old site had but the Forum. Hopefully, that will be included someday on the new site.
Go visit the site and explore the free resources you can use in your class.