Bukkit

Vault is a Economy/Permission plugin for hooking into the various Economy and Permission plugins.

The essential plugin for Spigot servers.

A collection of useful commands and features for server admins and players.

Set up custom villager shopkeepers

The best chest&sign shop system for Bukkit

Allows server admins to easily modify how Minecraft works without programming anything

Multiverse Inventories allows you to control who and what can cross world borders!

Enchant any item with whatever you want, add lore to items, rename items too! UberEnchant has it all!

Get custom items on join.

Unique and challenging custom achievements or quest-like objectives on your server! Books, fancy GUI, rankings, rewards, effects and more!

Inexpensively protects your ores from cheaters.

Replicate first-person shooters with advanced gun-mechanics and a vast number of exciting and fully customisable features.

The all in one Shop plugin, With a sexy GUI, Sleek code, and light weight performance!

A better way to trade! For Citizens(2).

This is a easy to use GUI shop plugin.

Another auction house plugin.

Jobs Reborn

LimitDrops

Commandless, Multi World, Player Owned Shops (Vault)

Lets you sell a players heads for half of their money