Project Honey Pot is Anti-Spam Blacklist Service with huge database updated every second from its users through Honey Pot traps. These bot traps are little forms you implement in your website that the legitimate visitors don't see but are visible for the bots. Once they are caught in the trap their action is recorded in the Project's database so all registered users can use this information for free.
AbyssGuard has builtin support for Project Honey Pot httpBL! The registration in their website is free and it takes not more than a minute. Then you can get your Honey Pot Key and use it in your AbyssGuard Client to activate this functionality.
Note that the Project Honey Pot Service is separate from AbyssGuard! We just offer as addition the ability to use your Honey Pot account with AbyssGuard.