SankoChat is very good anti-advertise, anti-spam etc chat management plugin. Its easy to config and it works good!
"Good tool for controling your chat and keeping it clean"
Features:
- Anti-spam, adjustable cooldown.
- Anti-repeat, stop people for saying same message!
- Smart anti-repeat, plugin can detect similar messages.
- Anti-caps, prevent people for using caps.
- URL and IP detect for preventing advertising!
- Blocked words detection, prevent swearing.
- Allowed sites for URL detect.
- Warning system with punishment system
- Fully customizable messages and settings.
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https://www.spigotmc.org/resources/sankochat.64082/