Since 1999, LD4all hosts a community. First, at a free forum solution, Network54. Later on our own forum (since 2002). That’s the forum you are on now.
If you want to take a stroll through the ancient times when LD4all still was called “Through the Mirror”, Facebook and other social media didn’t exist and a little group of lucid dreamers formed a community - here is where the LD4all lucid dreamers community started 
Please be warned that the place is swarmed with ads at this point, which we have no control over (nor get anything from it).
LD4all Ancient Archives
- First Lucid Dreaming Community (1999-2002)
The origins of the LD4all community as you know it now. - First Dutch Community (1999-2002)
The beginnings of the LD4all Dutchies community