Free visitors to software for linux

Solar Visitor is a space simulator where the user flies around our Solar System in a 3D view. The program and source code are offered free, there are builds for Windows and Linux. Solar Visitor uses the Ogre graphics library. The planets and objects were created with the Blender program.
Because Solar Visitor is a 3D program, performance depends on the capabilities of the users video system.
If you wish you may build from source using available tools but be warned this is not an easy task. An addition to Ogre a compiler and IDE (on Windows) are required. The Ogre web site has installation instructions for its use. Those without c/c++ experience will find themselves jumping in the deep end.
With the release of version 0.2.x the user can view planets rendered from textures which is a vast improvement over the painted colours of 0.1.0. There is still realism to add. For instance, the orbits are engineered to showcase shadow effects and not be realistic, where eclipses are rare.
The program code is released under the GPL, the media are generated from downloadable images on the web, details of location are provided. Images remain the property of respective owners.
Enhancements:
- bugfixes
- tilted orbits

Vice Stats is an advanced Web site statistics gathering package. Vice Stats collects data about the resources in a Web site, the visitors to that site, and the referring resources. Vice Stats runs in PHP and stores its data in a MySQL database.
Enhancements:
- The $vs_resourceQuery parameter is properly taken into effect in the Resources tab on the front page.
- The $vs_resourceHost parameter was added for sites that have more than one subdomain.
- There are updates to the browser and IP location databases.

Quizmaster project is a program designed to allow the creation of short, fun quizzes.

Quizmaster is a type-oriented quiz program that gives multiple-choice questions along the axes you provide and selects the results that most closely match your visitors responses (think SelectSmart or the Myers-Briggs test).

It comes with amusing quizzes already installed.

Quizmaster is a search engine meant to provide high-usability and powerful access to documents being searched. It does not search the web, but local files provided to it. It is meant to help the user find materials quickly.

ssLinks provides an open source PHP and mySQL powered links database.
ssLinks is an open source PHP and mySQL powered links database which allows users to run a database driven categorised links section on a web site - similar in structure to Yahoo or any other categorised links collection.
Main features:
- Fully database driven utilising mySQL.
- Full template system allowing you to control the HTML output of the script without needing to alter any of the PHP code.
- Easily customisable if you wish to alter the script in any way.
- Very easy to admin via the web - log in and add / edit categories and links.
- Visitors to your site can recommend new links, which you can then validate.
- Allows visitors to rate your links from 1-10, and displays average rating.
- Rating a link more than once is discouraged using cookies.
- Number of hits each link has received is recorded and displayed.
- Very easy to set up and use, thanks to an installation script and config file.
- Built in Search Feature.
- Most popular, top rated and newest links pages.
- Its Open Sourced under the GPL
Enhancements:
- The elusive top rated SQL error has finally been squashed :o) (thanks freakysid on www.sitepointforums.com)
- Login form now uses META tag redirect instead of standard header method - this prevents conflicts with the cookie header which may have prevented some browsers from logging in.

Daily Diabetes Diet Counter project is a nice little Javascript tool that allows your web site visitors to count their calorie, starch, vegetable, fruit, milk, meat and fat intake throughout the day.
Since it runs on the visitors computer, they can use it off-line as well. The Daily Diabetes Diet Counter allows the visitor to choose their regular calorie intake level, and then determines the maximum number of food types they should have during the day, according to the the National Diabetes Information Clearinghouse.
Main features:
- Daily Diabetes Diet Counter is easy to install. Just unzip, upload and youre done!
- The Daily Diabetes Diet Counter is Javascript-based, so the visitor only needs to visit the page once and then can keep the page open throughout the day.
- Generates an ongoing list of foods and totals for all the different food types for easy printing later on.
- Best of all, Daily Diabetes Diet Counter is totally free!

Weight Loss Recipe Book is a free, online, community-built recipe book. Weight Loss Recipe Book contains everything you need to allow your web site visitors to submit recipes and everything your administrator needs to administer the recipes.
When a visitor submits a recipe, the recipe is added to a database and awaits approval from the administrator before being added to the public site.
Main features:
- Community built, meaning you just have to approve entries and watch your web site expand!
- Captcha validation to prevent automated entries into the recipe book.
- Complete administrator system - add administrators, recipe categories, manage recipes and more!
- Best of all, Weight Loss Recipe Book is totally free!

Illustrated project is aiming to provide a way to share picture and photos in a structured way. Therefore just like most other web galleries, a title and a description can be added to each photo. But pictures can also be presented as groups within chapters, where they illustrate the text.
I started developping it because although there are many Web galleries already, none was made to do what I wanted to do. The project is very young and therefore much features are too be implemented.
What is Illustrated, and what it is not
- Illustrated is made to share pictures with others with a structured description.
- It supports multilanguage description: you can either add a single description, or add various descriptions with < intl-xx > tags (for instance: < intl-en >English description< /intl-en >). The language used will then depend on the browser settings.
- Within a same album, pictures are shared by chapters, allowing you to storytell what those photos are meaning, just like you would do if you showed to your friends photos of a trip.
- Illustrated is not made to upload loads of pictures for visitors to browse just like with a picture viewer. You could do that, but I would rather recommend you Gallery or Coppermine.
- It is not made to post daily photos and let visitors write some comments. Comments are not supported, and I do not plan to implement this. If you are looking for a photoblog, I would rather recommend you Pixelpost.
How to install it
Illustrated should work on any system as long as PHP, MySQL, and ImageMagick or GD are present. Since it is still at an early development stage, it does not include yet a guided installation, so you will have to set it up manually. This is quite simple though.
Edit the connect.php and index.php files, then just upload all PHP and CSS files in a directory of your web space, and create a directory called pictures with permissions for writing.
Create the database. To do so, if you have access to a command line, just run the following line with your own MySQL login and password.
mysql -ulogin -ppassword < illustrated.sql
If you have access to a phpMyAdmin interface, you can use it to import the file. Just pay attention to the maximum file size.
At last, if you do not have other option left (which would be surprising), you can write a PHP script to build the database. I will write one later.

Calorie Burning Calculator project is a free, nicely-formatted online calculator to help your web site visitors calculate how many calories they require a day to maintain their body weight, or basal metabolic rate (BMR).
Main features:
- Calorie Burning Calculator is easy to install, just unzip, upload and youre done!
- Simple interface makes it easy for visitors to use the calculator, and will encourage them to come back to use it again and again!
- Adjust the Calorie Burning Calculator to fit the look and feel of your own site.
- A great way to add some extra content to your health related web site.
- Calorie Burning Calculator is completely free!