Introducing a great classic server called Public Freebuild. The server is running 24/7 with no-lag and has a great variety of players from all over the world. Everyone is welcome and with our kind staff and players you will fit in just fine. We have a huge Guest world and an anti-grief system installed so you don't need to worry about being griefed.
If you have any questions visit our forum: publicfreebuild.freeforums.org
We also have an IRC channel which can be accessed by the public by going to esper.net and joining #publicfreebuild