Since 1.0.0, "Common" and "Rare" blocks are obsolete

For the new generation features of 1.1, you will need to delete your world file(s)

In 1.2, bonus chests were added. The world will need to be re-generated for it to take effect.

SkyGridSMP

SkyGridSMP is a world generator that generates a scatter of blocks as the map. The idea comes from SethBling.

Screenshot

A typical SkyGrid map.

Video

SethBling's video about SkyGrid.

How to use

Install the plugin like any other plugin (Place in the plugins folder)
If using Multiverse, use the command: /mvcreate world_skygrid NORMAL -g SkyGridSMP
If not using Multiverse, open bukkit.yml and add this:

#You can replace "world" with any world name.
worlds:
  world:
    generator: SkyGridSMP
  world_nether:
    generator: SkyGridSMP

If a world has already been generated under a wanted name, delete the corresponding world files or rename them.

Configuration

Generator:
  #  block_name:probability
  #  Higher probability means it will be more abundant
  #  If sprinting is false, blocks will have 1 space between them
  #  If sprinting is true, blocks will be 3 spaces apart
  #  Useful if running a version prior to Beta 1.8 or sprinting is disabled
  #  Recommend setting max_height to 128 or lower if sprinting is false to reduce lag!
  Max_Height: 256
  Sprinting: true
  Blocks:
    - stone:120
    - grass:100
    - water:10
    - lava:5
    - sand:20
    - gravel:10
    - gold_ore:10
    - iron_ore:30
    - coal_ore:30
    - log:100
    - leaves:40
    - lapis_ore:5
    - sandstone:10
    - web:10
    - wool:25
    - tnt:2
    - bookshelf:3
    - mossy_cobblestone:5
    - obsidian:5
    - mob_spawner:1
    - chest:1
    - diamond_ore:1
    - redstone_ore:8
    - snow_block:8
    - clay:20
    - pumpkin:5
    - melon_block:5
    - mycel:15
  Spawners:
    List: [sheep, pig, cow, chicken]
  #  Plants generate on top of grass and dirt blocks if the chance is met if enabled.
  #  If you want plants to generate in the air like other blocks, then put them in one of the "Blocks" lists.
  #  If cactus is enabled, cactus will generate on top of sand blocks if the chance is met.
  Plants:
    Enabled: true
    List: [sapling, yellow_flower, red_rose, brown_mushroom, red_mushroom, sugar_cane_block]
    Chance: 0.35
    Cactus: 
      Enabled: true
      Chance: 0.4
  #  Animals generate on top of blocks.
  Animals:
    Enabled: false
    List: [cow, pig, sheep, chicken]
    Chance: 0.005
  #  Nether generator will be used if the world is the Nether
  #  Plants generate on netherrack
  #  Blaze overrides block placed normally by chance
  Nether:
    Blocks:
      - lava:50
      - gravel:30
      - netherrack:300
      - mob_spawner:1
      - chest:1
      - soul_sand:100
      - glowstone:50
      - nether_brick:30
      - nether_fence:10
      - nether_brick_stairs:15
    Spawners:
      List: [blaze]
    Plants:
      Enabled: true
      List: [red_mushroom, brown_mushroom]
      Chance: 0.35
      Warts:
        Enabled: true
        Chance: 0.4
  #  Bonus Chests; Format is...
  #  beginID:endID,beginData:endData,beginAmnt:endAmnt,chance
  #  Example:  1:5,0:0,10:64,0.7
  #  Puts 10 to 64 of ONE item from ID range 1-5 with no data at 70% success rate
  #  All data must be provided, use "null" (non-case sensitive) to omit it.
  #  Example:  1:5,null,10:64,0.7
  #  Can null amount or data; amount defaults to 1, data defaults to 0
  Chests:
    Items:
      - 256:294,null,null,0.7
      - 298:317,null,null,0.7
      - 318:350,null,null,0.7
      - 383:383,50:52,null,0.3
      - 383:383,54:62,null,0.9
      - 383:383,90:96,null,0.4
      - 383:383,98:98,null,0.1
      - 383:383,120:120,null,0.1
      - 1:5,null,10:64,0.7
      - 6:6,0:3,null,1.0

Tips

For players

Get your basic materials first (wood, cobble, etc.)
Concentrate on building a cobblestone generator first
Collect wool and melons so you have food and a bed

For server-owners

Protect the spawn and make one. It can easily be grieved so that it's un-playable for new players.

To-Do

Allow changing of block data generation (Brown wool, Red wool, etc.)
The End support