Paronicon is Call of Duty RCON tool that was built to fill a gap that existed in the current RCON tools that are available. It was the first to have many features that many tools now have (cross server support, management mode, API, custom plugins). Many of these features are still actively being enhanced and supported. It currently can run Black Ops I, MW, WaW, and MW2 (4D1 servers). Check it out and let me know what you think!
With the advent of some really popular DayZ as well as many other ARMA II mods that made that game have a second life, we at GSN, started hosting several servers for it as well. While there are many good tools to be used to manage a DayZ server in particular, none of them are gears towards ARMA by itself. This tool is currently unreleased and is being built at this time. As the server code gets released and stable, we will push it out to help people manage their servers. Let me know if you have any ideas for it!
This is a startup company that is going to offer on demand competitive gaming. It will allow you to team up with other gamers of your caliber and challenge them into competitions for cash prizes. It is going to support many of the most popular FPS games, and will allow for independent and clan play as well. Check back frequently for more updates when they are available.