Bukkit

Thirst

HideStream - updated! - Simple, lightweight, effective.

A simple Minecraft plugin that allows players to join on any version later than the current server version.

General purpose API for my plugins. Just contains some utility classes and methods.

Offers full rpg system, classes, weapons, spells, mobs and quests

SetSpawn

Ultimate Core is all you need to setup a server and more.

Lucky Block Plugin

Backpacks, mobile furnaces, etc... as items! No client-side mods required.

An mcMMO themed plugin for horse role-playing.

Basic Minecraft sethomes & setwarps plugin

Powerful mob and entity management

[Lite Version, Economy, Item Storage, Exp Storage, Highly Configurable]

Advanced secure for region from WorldGuard

Light weight and easy to use!

[CHAT] mChat v1.7.10_5 - Chat formatting plugin [1060]

Disguise as any mob in minecraft!

aims to improve the bow vs. bow combat experience while staying true to Minecraft's vanilla mechanics as much as possible

A fully customizable and open-source DayZ/MineZ post-apocalyptic Minecraft plugin.

VT or Skript like plugin allow you from shallow functionality to deep access to the server itself.