99modules - WHMCS Modules and Themes Center!
Maintenance Plus module allows the WHMCS administrator to close the website for maintenance or coming soon page, module is fully customizable and you can setup you want page on it as easy.
Allow clients to call you just by one click
Send welcome gift code to your recently registered clients.
Webmaster Tools module adds verification meta tags easy
Age verification popup module displays the age verification popup in client area
With this module you can easily hide products to specific client groups