NostalgiaGen 0.6 - Generate Minecraft Alpha/Beta worlds on your Sponge/Forge server - Plugin Releases - Sponge Forums
New Frontier Craft [for Beta 1.7.3] [Minecraft: Java Edition] [Mods]
Better than Adventure!" for Beta 1.7.3 - Timely updates revolving around the theme of "Minecraft without the adventure update" [1.7.4_02] Minecraft Mod
Minecraft Beta Server Jars (Normal Jars and CraftBukkit) : Free Download, Borrow, and Streaming : Internet Archive