This server is a skyblock server, it has skyblock smp installed and is also cracked;
has a great community of people who are friendly and are always helpful. The owner answers most questions you have. The server has no creepers so your island wont get wrecked and tons of challenges and special requests which give certain items in return
e.g make a cake to receive: flint & steel, 3 snowblocks etc. Challenges can also be viewed as a command and there are about 11 in total ranging from making a cobble generator to expanding an island. This server is whitelisted and has 100 slots; also has a donation system which seems well worth it.
This server is really worth checking out. There are lots of spots to fill.