Bukkit

Collect all items and mobs using this plugin to keep track

PwnFilter - The return of your favorite RegEx Chat Plugin, block swears, fix .command & more!

Websend

OfflineManager - Manage offline players with commands!

Port of AppleSkin's server modifications to Bukkit

Bans, kicks and records.

[1.7.10 - 1.13.2] Similar to popular EnderChest++ but with more features and up to date.

VIP+ Chat (Complete Re-code)

FunnyGuilds is a fully customizable RPG plugin that allows you to create guilds

Apply gravity to blocks when placed.

AimbotPro

Does not allow Endermen to pickup blocks, also does not allow Skeleton Horses to spawn.

Automatic Announcements

The Bukkit implementation of the Flint minigame engine

Town claiming and capturing with global kingdoms, resident management and stats/titles

craftconomy

A simple, yet effective jails management system.

Craft items with a single click!

DisableCraft

CreativeStick will allow you to build, replace, or remove blocks at a distance by simply shaking a stick at them.