Just letting you know about my clans latest creation, an Addon Installer for L4D2.
Basically our clan has over 100 members, and not all of them are tech-savvy with us being a casual clan, so one of our members made a tool for easily downloading/installing mods, and since then it has been developed into a handy utility which saves time and effort, and does a pretty good job of keeping your mods/maps up to date with the latest version.
The program itself has only been around a couple of weeks, written by [SAO] Peter with some influences from myself. I'd be pleased if any of you interested would like to come download it and try it out for yourselves, and maybe give us some constructive feedback on it.
Left 4 Dead 2 Add-On Installer - Stand As One Forums
We have a steam group for those who want to be kept up to date about this project, to contribute suggestions and so forth
Steam Community :: Group :: Left 4 Dead 2 Add-On Installer
Bootnote: Once you download/install it, go to Help->Check for Updates to get the latest version
PS. you must have .net Framework 3.5 and Left 4 Dead Addon Support installed (steam, tools tab)