Bukkit

Custom enchantments, upgrading enchantments with chance, easy and simple!

Qwarp is a warp plug-in aimed at a pvp-survival implementation

A Single-Sign method for allowing players to sell items to the server.

Adds casino roulette to your server

In this plugin you can convert Items.

Give money while break an ore

Players gain a bounty on their head.

AdminShop

Economy, Money, Bank, Vault

Multi Experience

Adds Economy functions to SimpleTowns

Taco

(discontinued) set monetary bounties on other players

A plugin working with BetterShops to change the sale prices automatically

Normalizes loot/experience dropped by monster traps and other farming methods in Minecraft

Horizon Professions

An in-depth tool to find Slime Chunks with advanced economy and GUI options

Real Jobs

This plugin uses item-backed currency to create stores

Trade between players like with villagers