Bukkit

Every Block Has Been Tested On This List. Known Bugs Are Listed For Bugged Blocks

Blocks That Do Not Move

BEDROCK
OBSIDIAN
CHEST
FURNACE
BURNING_FURNACE - Will Drop Items And Remain A Burning Furnace
JUKEBOX
ENCHANTMENT_TABLE
ENDER_PORTAL_FRAME
ENDER_CHEST
SIGN_POST
WALL_SIGN
DISPENSER
NOTE_BLOCK
BREWING_STAND - Progress Loss, But Items Stay
MOB_SPAWNER

Blocks That Break

PUMPKIN
JACK_O_LANTERN
MELON_BLOCK
SAPLING
WEB
YELLOW_FLOWER
RED_ROSE
BROWN_MUSHROOM
RED_MUSHROOM
TORCH
LADDER
WATER_LILY
BED_BLOCK - Still Breaks
LEVER
STONE_PLATE
WOOD_PLATE
REDSTONE_TORCH_ON
REDSTONE_TORCH_OFF
STONE_BUTTON
TRIPWIRE_HOOK - Leaves String When Moved
WOODEN_DOOR - Still Breaks
IRON_DOOR_BLOCK - Still Breaks
REDSTONE_WIRE
DIODE_BLOCK_OFF - This Is An Off Redstone Repeater
DIODE_BLOCK_ON - This Is An On Redstone Repeater

Blocks That Are Destroyed

LEAVES
LONG_GRASS
DEAD_BUSH
VINE