Teambox is an open-source web-based, twitter like project collaboration tool.

Teambox is written in Ruby on Rails and is free to download at Github repository.

git clone git://github.com/micho/teambox.git

Installing Teambox
You can use Teambox for free in its hosted version, without worries, at Teambox.com. But you can also host your own copy to customize it!

Key features
Share messages, tasks and wiki for each of your projects. More social. Multi-language. Also the application has support for mobile phones & offers a read-only API for integrations with 3rd party softwares.

PDFCreator is one of the best known programs to create PDF files from any application. Start converting your documents and add encryption with PDFCreator to secure them again modifications.

Key Features:

• Create PDFs from any program that is able to print
• Security: Encrypt PDFs and protect them from being opened, printed etc
• Digitally sign your PDFs to ensure that you are the author and the file has not been modified
• Create more than just PDFs: PNG, JPG, TIFF, BMP, PCX, PS, EPS
• Merge multiple files into one PDF
• Easy Install
• Supports Windows Vista and Windows 7

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Gallery is an open source project with the goal to develop and support leading photo sharing web application solutions.

With Gallery you can easily create and maintain albums of photos via an intuitive interface. Photo management includes automatic thumbnail creation, image resizing, rotation, ordering, captioning, searching and more. Albums and photos can have view, edit, delete and other permissions per individual authenticated user for an additional level of privacy.

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