Captchator is a free Captcha service that you can use to protect your Blog, Wiki or Forum against Spam. It works with any web programming language/framework (PHP, Ruby on Rails, Python, Perl), doesn't require any extensions or libraries, and can be implemented with just a few lines of code.
Easy Way to Protect Your Shoutcast Radio Streams,
Manual and User self-registration over SMS and Control Panel.
You can easily make money Running your own shoutcast server.
Delete registered users automatically after x days.
Authpro is a password protection service that allows you to control access to your pages. You have many options for you to configure your account. You can have multiple users, users can register on your site and you can collect their information by designing your own registration form.
Would you like to make sure not every nosey surfer gets to see all the goodies? Now you can protect your entire site or just a few pages. Easy to use, fully customizable page layout, multiple number of logins and passwords.
Every wanted to have a page that is password protected? Now you can. Features include: Add Unlimited Users, You can customize the HTML for the page that is displayed, The page is protected via .htaccess protection, meaning that only authorized users can access it, and Easy User Administration.
This program allows you to protect your site or homepage with password, automatically register new users, recieve e-mail with information filled by new users and register them by yourself, design your own registration page with any fields combination, have new users recieve welcome message from you after registration (only for deluxe accounts), add, delete, modify your users (up to 10 for one account), and assign every user their own URL's both for successful and not successful authorization.